Home / 45,139,781.28-62,311,967.13-30,475,310.68

Finding the Fourth Proportional to 45,139,781.28, 62,311,967.13 and 30,475,310.68

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Solution

The fourth proportional to 45,139,781.28, 62,311,967.13 and 30,475,310.68 is: 42,068,802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,139,781.28 : 62,311,967.13 = 30,475,310.68 : x
  2. Step 2: Convert to fraction form
    45,139,781.28/62,311,967.13 = 30,475,310.68/x
  3. Step 3: Cross multiply
    45,139,781.28x = 62,311,967.13 × 30,475,310.68
  4. Step 4: Simplify right side
    45,139,781.28x = 1,898,976,557,342,831.25
  5. Step 5: Solve for x
    x = 1,898,976,557,342,831.25/45,139,781.28
  6. Step 6: Final answer
    x = 42,068,802.81

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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.