Home / 784,616,757.85-1,176,925,136.78-662,172,751.45

Finding the Fourth Proportional to 784,616,757.85, 1,176,925,136.78 and 662,172,751.45

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Solution

The fourth proportional to 784,616,757.85, 1,176,925,136.78 and 662,172,751.45 is: 993,259,127.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,616,757.85 : 1,176,925,136.78 = 662,172,751.45 : x
  2. Step 2: Convert to fraction form
    784,616,757.85/1,176,925,136.78 = 662,172,751.45/x
  3. Step 3: Cross multiply
    784,616,757.85x = 1,176,925,136.78 × 662,172,751.45
  4. Step 4: Simplify right side
    784,616,757.85x = 779,327,756,068,969,472
  5. Step 5: Solve for x
    x = 779,327,756,068,969,472/784,616,757.85
  6. Step 6: Final answer
    x = 993,259,127.18

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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.