Home / 385,500,178.38-578,032,967.16-126,645,896.10

Finding the Fourth Proportional to 385,500,178.38, 578,032,967.16 and 126,645,896.10

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Solution

The fourth proportional to 385,500,178.38, 578,032,967.16 and 126,645,896.10 is: 189,897,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,500,178.38 : 578,032,967.16 = 126,645,896.10 : x
  2. Step 2: Convert to fraction form
    385,500,178.38/578,032,967.16 = 126,645,896.10/x
  3. Step 3: Cross multiply
    385,500,178.38x = 578,032,967.16 × 126,645,896.10
  4. Step 4: Simplify right side
    385,500,178.38x = 73,205,503,101,320,064
  5. Step 5: Solve for x
    x = 73,205,503,101,320,064/385,500,178.38
  6. Step 6: Final answer
    x = 189,897,455.84

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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.