Home / 103,631,213.60-155,446,820.40-31,818,298.40

Finding the Fourth Proportional to 103,631,213.60, 155,446,820.40 and 31,818,298.40

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Solution

The fourth proportional to 103,631,213.60, 155,446,820.40 and 31,818,298.40 is: 47,727,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,631,213.60 : 155,446,820.40 = 31,818,298.40 : x
  2. Step 2: Convert to fraction form
    103,631,213.60/155,446,820.40 = 31,818,298.40/x
  3. Step 3: Cross multiply
    103,631,213.60x = 155,446,820.40 × 31,818,298.40
  4. Step 4: Simplify right side
    103,631,213.60x = 4,946,053,316,818,407
  5. Step 5: Solve for x
    x = 4,946,053,316,818,407/103,631,213.60
  6. Step 6: Final answer
    x = 47,727,447.60

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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.