Home / 72,227,007.18-108,155,541.60-39,842,917.20

Finding the Fourth Proportional to 72,227,007.18, 108,155,541.60 and 39,842,917.20

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Solution

The fourth proportional to 72,227,007.18, 108,155,541.60 and 39,842,917.20 is: 59,662,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,227,007.18 : 108,155,541.60 = 39,842,917.20 : x
  2. Step 2: Convert to fraction form
    72,227,007.18/108,155,541.60 = 39,842,917.20/x
  3. Step 3: Cross multiply
    72,227,007.18x = 108,155,541.60 × 39,842,917.20
  4. Step 4: Simplify right side
    72,227,007.18x = 4,309,232,288,689,955.50
  5. Step 5: Solve for x
    x = 4,309,232,288,689,955.50/72,227,007.18
  6. Step 6: Final answer
    x = 59,662,340.40

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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.