Home / 657,931,002.20-986,896,503.30-554,618,871.80

Finding the Fourth Proportional to 657,931,002.20, 986,896,503.30 and 554,618,871.80

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Solution

The fourth proportional to 657,931,002.20, 986,896,503.30 and 554,618,871.80 is: 831,928,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,931,002.20 : 986,896,503.30 = 554,618,871.80 : x
  2. Step 2: Convert to fraction form
    657,931,002.20/986,896,503.30 = 554,618,871.80/x
  3. Step 3: Cross multiply
    657,931,002.20x = 986,896,503.30 × 554,618,871.80
  4. Step 4: Simplify right side
    657,931,002.20x = 547,351,425,243,610,880
  5. Step 5: Solve for x
    x = 547,351,425,243,610,880/657,931,002.20
  6. Step 6: Final answer
    x = 831,928,307.70

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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.