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Finding the Fourth Proportional to 6,839,781.60, 10,259,672.40 and 1,791,602.40

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Solution

The fourth proportional to 6,839,781.60, 10,259,672.40 and 1,791,602.40 is: 2,687,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,839,781.60 : 10,259,672.40 = 1,791,602.40 : x
  2. Step 2: Convert to fraction form
    6,839,781.60/10,259,672.40 = 1,791,602.40/x
  3. Step 3: Cross multiply
    6,839,781.60x = 10,259,672.40 × 1,791,602.40
  4. Step 4: Simplify right side
    6,839,781.60x = 18,381,253,695,053.76
  5. Step 5: Solve for x
    x = 18,381,253,695,053.76/6,839,781.60
  6. Step 6: Final answer
    x = 2,687,403.60

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1.5x scale

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.