Home / 887,124,915.20-1,330,687,372.80-657,542,403.20

Finding the Fourth Proportional to 887,124,915.20, 1,330,687,372.80 and 657,542,403.20

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Solution

The fourth proportional to 887,124,915.20, 1,330,687,372.80 and 657,542,403.20 is: 986,313,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,124,915.20 : 1,330,687,372.80 = 657,542,403.20 : x
  2. Step 2: Convert to fraction form
    887,124,915.20/1,330,687,372.80 = 657,542,403.20/x
  3. Step 3: Cross multiply
    887,124,915.20x = 1,330,687,372.80 × 657,542,403.20
  4. Step 4: Simplify right side
    887,124,915.20x = 874,983,373,018,806,400
  5. Step 5: Solve for x
    x = 874,983,373,018,806,400/887,124,915.20
  6. Step 6: Final answer
    x = 986,313,604.80

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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.