Home / 125,186,401.15-187,647,068.81-42,109,065.89

Finding the Fourth Proportional to 125,186,401.15, 187,647,068.81 and 42,109,065.89

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Solution

The fourth proportional to 125,186,401.15, 187,647,068.81 and 42,109,065.89 is: 63,119,018.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,186,401.15 : 187,647,068.81 = 42,109,065.89 : x
  2. Step 2: Convert to fraction form
    125,186,401.15/187,647,068.81 = 42,109,065.89/x
  3. Step 3: Cross multiply
    125,186,401.15x = 187,647,068.81 × 42,109,065.89
  4. Step 4: Simplify right side
    125,186,401.15x = 7,901,642,783,436,873
  5. Step 5: Solve for x
    x = 7,901,642,783,436,873/125,186,401.15
  6. Step 6: Final answer
    x = 63,119,018.61

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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.