Home / 687,077,672.40-1,029,944,662.20-614,518,261.20

Finding the Fourth Proportional to 687,077,672.40, 1,029,944,662.20 and 614,518,261.20

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Solution

The fourth proportional to 687,077,672.40, 1,029,944,662.20 and 614,518,261.20 is: 921,176,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,077,672.40 : 1,029,944,662.20 = 614,518,261.20 : x
  2. Step 2: Convert to fraction form
    687,077,672.40/1,029,944,662.20 = 614,518,261.20/x
  3. Step 3: Cross multiply
    687,077,672.40x = 1,029,944,662.20 × 614,518,261.20
  4. Step 4: Simplify right side
    687,077,672.40x = 632,919,802,947,365,504
  5. Step 5: Solve for x
    x = 632,919,802,947,365,504/687,077,672.40
  6. Step 6: Final answer
    x = 921,176,496.30

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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.