Home / 898,152,079.80-1,347,228,119.70-438,385,193.40

Finding the Fourth Proportional to 898,152,079.80, 1,347,228,119.70 and 438,385,193.40

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Solution

The fourth proportional to 898,152,079.80, 1,347,228,119.70 and 438,385,193.40 is: 657,577,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,152,079.80 : 1,347,228,119.70 = 438,385,193.40 : x
  2. Step 2: Convert to fraction form
    898,152,079.80/1,347,228,119.70 = 438,385,193.40/x
  3. Step 3: Cross multiply
    898,152,079.80x = 1,347,228,119.70 × 438,385,193.40
  4. Step 4: Simplify right side
    898,152,079.80x = 590,604,859,808,602,880
  5. Step 5: Solve for x
    x = 590,604,859,808,602,880/898,152,079.80
  6. Step 6: Final answer
    x = 657,577,790.10

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Double scale
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Similar ratio
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1.5x scale

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.