Home / 832,918,913.20-1,248,528,064.20-487,694,839.60

Finding the Fourth Proportional to 832,918,913.20, 1,248,528,064.20 and 487,694,839.60

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Solution

The fourth proportional to 832,918,913.20, 1,248,528,064.20 and 487,694,839.60 is: 731,044,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,918,913.20 : 1,248,528,064.20 = 487,694,839.60 : x
  2. Step 2: Convert to fraction form
    832,918,913.20/1,248,528,064.20 = 487,694,839.60/x
  3. Step 3: Cross multiply
    832,918,913.20x = 1,248,528,064.20 × 487,694,839.60
  4. Step 4: Simplify right side
    832,918,913.20x = 608,900,694,006,117,504
  5. Step 5: Solve for x
    x = 608,900,694,006,117,504/832,918,913.20
  6. Step 6: Final answer
    x = 731,044,384.22

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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.