Home / 718,679,938.80-1,078,019,908.20-288,167,401.20

Finding the Fourth Proportional to 718,679,938.80, 1,078,019,908.20 and 288,167,401.20

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Solution

The fourth proportional to 718,679,938.80, 1,078,019,908.20 and 288,167,401.20 is: 432,251,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,679,938.80 : 1,078,019,908.20 = 288,167,401.20 : x
  2. Step 2: Convert to fraction form
    718,679,938.80/1,078,019,908.20 = 288,167,401.20/x
  3. Step 3: Cross multiply
    718,679,938.80x = 1,078,019,908.20 × 288,167,401.20
  4. Step 4: Simplify right side
    718,679,938.80x = 310,650,195,387,856,576
  5. Step 5: Solve for x
    x = 310,650,195,387,856,576/718,679,938.80
  6. Step 6: Final answer
    x = 432,251,101.80

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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.