Home / 1,220,210,130.30-1,683,908,429.96-684,480,551.07

Finding the Fourth Proportional to 1,220,210,130.30, 1,683,908,429.96 and 684,480,551.07

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Solution

The fourth proportional to 1,220,210,130.30, 1,683,908,429.96 and 684,480,551.07 is: 944,593,510.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,210,130.30 : 1,683,908,429.96 = 684,480,551.07 : x
  2. Step 2: Convert to fraction form
    1,220,210,130.30/1,683,908,429.96 = 684,480,551.07/x
  3. Step 3: Cross multiply
    1,220,210,130.30x = 1,683,908,429.96 × 684,480,551.07
  4. Step 4: Simplify right side
    1,220,210,130.30x = 1,152,602,570,098,465,280
  5. Step 5: Solve for x
    x = 1,152,602,570,098,465,280/1,220,210,130.30
  6. Step 6: Final answer
    x = 944,593,510.15

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Half scale
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Double scale
Find fourth proportional to 1,220,210,131.30, 1,683,908,431.34 and 684,480,552.07
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.