Home / 687,124,176.16-1,031,654,815.44-492,929,729.86

Finding the Fourth Proportional to 687,124,176.16, 1,031,654,815.44 and 492,929,729.86

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Solution

The fourth proportional to 687,124,176.16, 1,031,654,815.44 and 492,929,729.86 is: 740,089,414.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,124,176.16 : 1,031,654,815.44 = 492,929,729.86 : x
  2. Step 2: Convert to fraction form
    687,124,176.16/1,031,654,815.44 = 492,929,729.86/x
  3. Step 3: Cross multiply
    687,124,176.16x = 1,031,654,815.44 × 492,929,729.86
  4. Step 4: Simplify right side
    687,124,176.16x = 508,533,329,483,607,424
  5. Step 5: Solve for x
    x = 508,533,329,483,607,424/687,124,176.16
  6. Step 6: Final answer
    x = 740,089,414.88

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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.