Home / 1,388,225,241.28-1,915,754,470.80-753,145,700.16

Finding the Fourth Proportional to 1,388,225,241.28, 1,915,754,470.80 and 753,145,700.16

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Solution

The fourth proportional to 1,388,225,241.28, 1,915,754,470.80 and 753,145,700.16 is: 1,039,343,039.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,225,241.28 : 1,915,754,470.80 = 753,145,700.16 : x
  2. Step 2: Convert to fraction form
    1,388,225,241.28/1,915,754,470.80 = 753,145,700.16/x
  3. Step 3: Cross multiply
    1,388,225,241.28x = 1,915,754,470.80 × 753,145,700.16
  4. Step 4: Simplify right side
    1,388,225,241.28x = 1,442,842,242,245,316,096
  5. Step 5: Solve for x
    x = 1,442,842,242,245,316,096/1,388,225,241.28
  6. Step 6: Final answer
    x = 1,039,343,039.83

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Double scale
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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.