Home / 713,016,005.60-1,071,224,619.60-638,189,112.80

Finding the Fourth Proportional to 713,016,005.60, 1,071,224,619.60 and 638,189,112.80

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Solution

The fourth proportional to 713,016,005.60, 1,071,224,619.60 and 638,189,112.80 is: 958,805,811.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,016,005.60 : 1,071,224,619.60 = 638,189,112.80 : x
  2. Step 2: Convert to fraction form
    713,016,005.60/1,071,224,619.60 = 638,189,112.80/x
  3. Step 3: Cross multiply
    713,016,005.60x = 1,071,224,619.60 × 638,189,112.80
  4. Step 4: Simplify right side
    713,016,005.60x = 683,643,889,592,041,472
  5. Step 5: Solve for x
    x = 683,643,889,592,041,472/713,016,005.60
  6. Step 6: Final answer
    x = 958,805,811.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.