Home / 105,648,985.60-158,473,478.40-72,770,502.40

Finding the Fourth Proportional to 105,648,985.60, 158,473,478.40 and 72,770,502.40

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Solution

The fourth proportional to 105,648,985.60, 158,473,478.40 and 72,770,502.40 is: 109,155,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,648,985.60 : 158,473,478.40 = 72,770,502.40 : x
  2. Step 2: Convert to fraction form
    105,648,985.60/158,473,478.40 = 72,770,502.40/x
  3. Step 3: Cross multiply
    105,648,985.60x = 158,473,478.40 × 72,770,502.40
  4. Step 4: Simplify right side
    105,648,985.60x = 11,532,194,640,243,550
  5. Step 5: Solve for x
    x = 11,532,194,640,243,550/105,648,985.60
  6. Step 6: Final answer
    x = 109,155,753.60

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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.