Home / 803,462,628.80-1,204,895,344.80-318,688,126.40

Finding the Fourth Proportional to 803,462,628.80, 1,204,895,344.80 and 318,688,126.40

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Solution

The fourth proportional to 803,462,628.80, 1,204,895,344.80 and 318,688,126.40 is: 477,913,752.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,462,628.80 : 1,204,895,344.80 = 318,688,126.40 : x
  2. Step 2: Convert to fraction form
    803,462,628.80/1,204,895,344.80 = 318,688,126.40/x
  3. Step 3: Cross multiply
    803,462,628.80x = 1,204,895,344.80 × 318,688,126.40
  4. Step 4: Simplify right side
    803,462,628.80x = 383,985,839,942,393,920
  5. Step 5: Solve for x
    x = 383,985,839,942,393,920/803,462,628.80
  6. Step 6: Final answer
    x = 477,913,752.52

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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.