Home / 20,712,934.40-31,064,419.20-10,610,355.20

Finding the Fourth Proportional to 20,712,934.40, 31,064,419.20 and 10,610,355.20

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Solution

The fourth proportional to 20,712,934.40, 31,064,419.20 and 10,610,355.20 is: 15,912,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,934.40 : 31,064,419.20 = 10,610,355.20 : x
  2. Step 2: Convert to fraction form
    20,712,934.40/31,064,419.20 = 10,610,355.20/x
  3. Step 3: Cross multiply
    20,712,934.40x = 31,064,419.20 × 10,610,355.20
  4. Step 4: Simplify right side
    20,712,934.40x = 329,604,521,793,699.81
  5. Step 5: Solve for x
    x = 329,604,521,793,699.81/20,712,934.40
  6. Step 6: Final answer
    x = 15,912,980.53

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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.