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Finding the Fourth Proportional to 342,472,374.40, 472,609,479.60 and 185,835,497.92

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Solution

The fourth proportional to 342,472,374.40, 472,609,479.60 and 185,835,497.92 is: 256,451,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,472,374.40 : 472,609,479.60 = 185,835,497.92 : x
  2. Step 2: Convert to fraction form
    342,472,374.40/472,609,479.60 = 185,835,497.92/x
  3. Step 3: Cross multiply
    342,472,374.40x = 472,609,479.60 × 185,835,497.92
  4. Step 4: Simplify right side
    342,472,374.40x = 87,827,617,963,178,080
  5. Step 5: Solve for x
    x = 87,827,617,963,178,080/342,472,374.40
  6. Step 6: Final answer
    x = 256,451,686.41

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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.