Home / 72,581,443.20-108,746,193.60-47,009,289.60

Finding the Fourth Proportional to 72,581,443.20, 108,746,193.60 and 47,009,289.60

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Solution

The fourth proportional to 72,581,443.20, 108,746,193.60 and 47,009,289.60 is: 70,432,345.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581,443.20 : 108,746,193.60 = 47,009,289.60 : x
  2. Step 2: Convert to fraction form
    72,581,443.20/108,746,193.60 = 47,009,289.60/x
  3. Step 3: Cross multiply
    72,581,443.20x = 108,746,193.60 × 47,009,289.60
  4. Step 4: Simplify right side
    72,581,443.20x = 5,112,081,307,840,066
  5. Step 5: Solve for x
    x = 5,112,081,307,840,066/72,581,443.20
  6. Step 6: Final answer
    x = 70,432,345.82

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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.