Home / 20,736,129.40-31,104,194.10-7,272,957.40

Finding the Fourth Proportional to 20,736,129.40, 31,104,194.10 and 7,272,957.40

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Solution

The fourth proportional to 20,736,129.40, 31,104,194.10 and 7,272,957.40 is: 10,909,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,129.40 : 31,104,194.10 = 7,272,957.40 : x
  2. Step 2: Convert to fraction form
    20,736,129.40/31,104,194.10 = 7,272,957.40/x
  3. Step 3: Cross multiply
    20,736,129.40x = 31,104,194.10 × 7,272,957.40
  4. Step 4: Simplify right side
    20,736,129.40x = 226,219,478,650,631.38
  5. Step 5: Solve for x
    x = 226,219,478,650,631.38/20,736,129.40
  6. Step 6: Final answer
    x = 10,909,436.10

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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.