Home / 385,695,849.28-578,697,077.64-123,420,810.84

Finding the Fourth Proportional to 385,695,849.28, 578,697,077.64 and 123,420,810.84

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Solution

The fourth proportional to 385,695,849.28, 578,697,077.64 and 123,420,810.84 is: 185,180,272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,695,849.28 : 578,697,077.64 = 123,420,810.84 : x
  2. Step 2: Convert to fraction form
    385,695,849.28/578,697,077.64 = 123,420,810.84/x
  3. Step 3: Cross multiply
    385,695,849.28x = 578,697,077.64 × 123,420,810.84
  4. Step 4: Simplify right side
    385,695,849.28x = 71,423,262,553,067,232
  5. Step 5: Solve for x
    x = 71,423,262,553,067,232/385,695,849.28
  6. Step 6: Final answer
    x = 185,180,272.71

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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.