Home / 78,955,246.60-118,432,869.90-25,108,001.80

Finding the Fourth Proportional to 78,955,246.60, 118,432,869.90 and 25,108,001.80

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Solution

The fourth proportional to 78,955,246.60, 118,432,869.90 and 25,108,001.80 is: 37,662,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,955,246.60 : 118,432,869.90 = 25,108,001.80 : x
  2. Step 2: Convert to fraction form
    78,955,246.60/118,432,869.90 = 25,108,001.80/x
  3. Step 3: Cross multiply
    78,955,246.60x = 118,432,869.90 × 25,108,001.80
  4. Step 4: Simplify right side
    78,955,246.60x = 2,973,612,710,628,366
  5. Step 5: Solve for x
    x = 2,973,612,710,628,366/78,955,246.60
  6. Step 6: Final answer
    x = 37,662,002.70

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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.