Home / 81,386,449.32-112,285,522.70-50,435,325.48

Finding the Fourth Proportional to 81,386,449.32, 112,285,522.70 and 50,435,325.48

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Solution

The fourth proportional to 81,386,449.32, 112,285,522.70 and 50,435,325.48 is: 69,583,535.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,386,449.32 : 112,285,522.70 = 50,435,325.48 : x
  2. Step 2: Convert to fraction form
    81,386,449.32/112,285,522.70 = 50,435,325.48/x
  3. Step 3: Cross multiply
    81,386,449.32x = 112,285,522.70 × 50,435,325.48
  4. Step 4: Simplify right side
    81,386,449.32x = 5,663,156,884,066,428
  5. Step 5: Solve for x
    x = 5,663,156,884,066,428/81,386,449.32
  6. Step 6: Final answer
    x = 69,583,535.48

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1.5x scale

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.