Home / 385,500,179.90-578,032,969.39-126,645,897.62

Finding the Fourth Proportional to 385,500,179.90, 578,032,969.39 and 126,645,897.62

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Solution

The fourth proportional to 385,500,179.90, 578,032,969.39 and 126,645,897.62 is: 189,897,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,500,179.90 : 578,032,969.39 = 126,645,897.62 : x
  2. Step 2: Convert to fraction form
    385,500,179.90/578,032,969.39 = 126,645,897.62/x
  3. Step 3: Cross multiply
    385,500,179.90x = 578,032,969.39 × 126,645,897.62
  4. Step 4: Simplify right side
    385,500,179.90x = 73,205,504,262,350,528
  5. Step 5: Solve for x
    x = 73,205,504,262,350,528/385,500,179.90
  6. Step 6: Final answer
    x = 189,897,458.11

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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.