Home / 20,996,830.61-31,483,848.86-9,468,809.68

Finding the Fourth Proportional to 20,996,830.61, 31,483,848.86 and 9,468,809.68

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Solution

The fourth proportional to 20,996,830.61, 31,483,848.86 and 9,468,809.68 is: 14,198,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,830.61 : 31,483,848.86 = 9,468,809.68 : x
  2. Step 2: Convert to fraction form
    20,996,830.61/31,483,848.86 = 9,468,809.68/x
  3. Step 3: Cross multiply
    20,996,830.61x = 31,483,848.86 × 9,468,809.68
  4. Step 4: Simplify right side
    20,996,830.61x = 298,114,572,644,461.69
  5. Step 5: Solve for x
    x = 298,114,572,644,461.69/20,996,830.61
  6. Step 6: Final answer
    x = 14,198,074.85

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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.