Home / 869,880,012.80-1,304,820,019.20-482,896,486.40

Finding the Fourth Proportional to 869,880,012.80, 1,304,820,019.20 and 482,896,486.40

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Solution

The fourth proportional to 869,880,012.80, 1,304,820,019.20 and 482,896,486.40 is: 724,344,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,880,012.80 : 1,304,820,019.20 = 482,896,486.40 : x
  2. Step 2: Convert to fraction form
    869,880,012.80/1,304,820,019.20 = 482,896,486.40/x
  3. Step 3: Cross multiply
    869,880,012.80x = 1,304,820,019.20 × 482,896,486.40
  4. Step 4: Simplify right side
    869,880,012.80x = 630,093,002,656,060,544
  5. Step 5: Solve for x
    x = 630,093,002,656,060,544/869,880,012.80
  6. Step 6: Final answer
    x = 724,344,729.60

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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.