Home / 135,432,933.12-186,908,974.43-76,706,045.42

Finding the Fourth Proportional to 135,432,933.12, 186,908,974.43 and 76,706,045.42

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Solution

The fourth proportional to 135,432,933.12, 186,908,974.43 and 76,706,045.42 is: 105,860,871.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,432,933.12 : 186,908,974.43 = 76,706,045.42 : x
  2. Step 2: Convert to fraction form
    135,432,933.12/186,908,974.43 = 76,706,045.42/x
  3. Step 3: Cross multiply
    135,432,933.12x = 186,908,974.43 × 76,706,045.42
  4. Step 4: Simplify right side
    135,432,933.12x = 14,337,048,280,715,126
  5. Step 5: Solve for x
    x = 14,337,048,280,715,126/135,432,933.12
  6. Step 6: Final answer
    x = 105,860,871.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.