Home / 719,331,493.20-1,079,427,700.92-310,387,643.70

Finding the Fourth Proportional to 719,331,493.20, 1,079,427,700.92 and 310,387,643.70

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Solution

The fourth proportional to 719,331,493.20, 1,079,427,700.92 and 310,387,643.70 is: 465,767,207.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,331,493.20 : 1,079,427,700.92 = 310,387,643.70 : x
  2. Step 2: Convert to fraction form
    719,331,493.20/1,079,427,700.92 = 310,387,643.70/x
  3. Step 3: Cross multiply
    719,331,493.20x = 1,079,427,700.92 × 310,387,643.70
  4. Step 4: Simplify right side
    719,331,493.20x = 335,041,020,633,067,136
  5. Step 5: Solve for x
    x = 335,041,020,633,067,136/719,331,493.20
  6. Step 6: Final answer
    x = 465,767,207.19

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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.