Home / 72,581,776.20-108,746,693.10-47,009,622.60

Finding the Fourth Proportional to 72,581,776.20, 108,746,693.10 and 47,009,622.60

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Solution

The fourth proportional to 72,581,776.20, 108,746,693.10 and 47,009,622.60 is: 70,432,845.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581,776.20 : 108,746,693.10 = 47,009,622.60 : x
  2. Step 2: Convert to fraction form
    72,581,776.20/108,746,693.10 = 47,009,622.60/x
  3. Step 3: Cross multiply
    72,581,776.20x = 108,746,693.10 × 47,009,622.60
  4. Step 4: Simplify right side
    72,581,776.20x = 5,112,141,001,629,024
  5. Step 5: Solve for x
    x = 5,112,141,001,629,024/72,581,776.20
  6. Step 6: Final answer
    x = 70,432,845.12

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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.