Home / 125,186,400.65-187,647,068.05-42,109,065.38

Finding the Fourth Proportional to 125,186,400.65, 187,647,068.05 and 42,109,065.38

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Solution

The fourth proportional to 125,186,400.65, 187,647,068.05 and 42,109,065.38 is: 63,119,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,186,400.65 : 187,647,068.05 = 42,109,065.38 : x
  2. Step 2: Convert to fraction form
    125,186,400.65/187,647,068.05 = 42,109,065.38/x
  3. Step 3: Cross multiply
    125,186,400.65x = 187,647,068.05 × 42,109,065.38
  4. Step 4: Simplify right side
    125,186,400.65x = 7,901,642,657,483,678
  5. Step 5: Solve for x
    x = 7,901,642,657,483,678/125,186,400.65
  6. Step 6: Final answer
    x = 63,119,017.85

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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.