Home / 72,891,345.04-100,592,155.60-40,298,396.56

Finding the Fourth Proportional to 72,891,345.04, 100,592,155.60 and 40,298,396.56

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Solution

The fourth proportional to 72,891,345.04, 100,592,155.60 and 40,298,396.56 is: 55,612,947.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,891,345.04 : 100,592,155.60 = 40,298,396.56 : x
  2. Step 2: Convert to fraction form
    72,891,345.04/100,592,155.60 = 40,298,396.56/x
  3. Step 3: Cross multiply
    72,891,345.04x = 100,592,155.60 × 40,298,396.56
  4. Step 4: Simplify right side
    72,891,345.04x = 4,053,702,577,194,024.50
  5. Step 5: Solve for x
    x = 4,053,702,577,194,024.50/72,891,345.04
  6. Step 6: Final answer
    x = 55,612,947.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.