Home / 918,429,400.68-1,267,396,066.72-542,207,176.36

Finding the Fourth Proportional to 918,429,400.68, 1,267,396,066.72 and 542,207,176.36

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Solution

The fourth proportional to 918,429,400.68, 1,267,396,066.72 and 542,207,176.36 is: 748,224,351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,429,400.68 : 1,267,396,066.72 = 542,207,176.36 : x
  2. Step 2: Convert to fraction form
    918,429,400.68/1,267,396,066.72 = 542,207,176.36/x
  3. Step 3: Cross multiply
    918,429,400.68x = 1,267,396,066.72 × 542,207,176.36
  4. Step 4: Simplify right side
    918,429,400.68x = 687,191,242,663,557,632
  5. Step 5: Solve for x
    x = 687,191,242,663,557,632/918,429,400.68
  6. Step 6: Final answer
    x = 748,224,351.44

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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.