Home / 747,954,003.60-1,121,931,005.40-726,430,643.10

Finding the Fourth Proportional to 747,954,003.60, 1,121,931,005.40 and 726,430,643.10

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Solution

The fourth proportional to 747,954,003.60, 1,121,931,005.40 and 726,430,643.10 is: 1,089,645,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,954,003.60 : 1,121,931,005.40 = 726,430,643.10 : x
  2. Step 2: Convert to fraction form
    747,954,003.60/1,121,931,005.40 = 726,430,643.10/x
  3. Step 3: Cross multiply
    747,954,003.60x = 1,121,931,005.40 × 726,430,643.10
  4. Step 4: Simplify right side
    747,954,003.60x = 815,005,061,766,551,680
  5. Step 5: Solve for x
    x = 815,005,061,766,551,680/747,954,003.60
  6. Step 6: Final answer
    x = 1,089,645,964.65

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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.