Home / 885,739,427.20-1,328,609,140.80-656,156,915.20

Finding the Fourth Proportional to 885,739,427.20, 1,328,609,140.80 and 656,156,915.20

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Solution

The fourth proportional to 885,739,427.20, 1,328,609,140.80 and 656,156,915.20 is: 984,235,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,739,427.20 : 1,328,609,140.80 = 656,156,915.20 : x
  2. Step 2: Convert to fraction form
    885,739,427.20/1,328,609,140.80 = 656,156,915.20/x
  3. Step 3: Cross multiply
    885,739,427.20x = 1,328,609,140.80 × 656,156,915.20
  4. Step 4: Simplify right side
    885,739,427.20x = 871,776,075,333,850,496
  5. Step 5: Solve for x
    x = 871,776,075,333,850,496/885,739,427.20
  6. Step 6: Final answer
    x = 984,235,372.80

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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.