Home / 76,431,932.90-105,484,780.41-45,492,200.90

Finding the Fourth Proportional to 76,431,932.90, 105,484,780.41 and 45,492,200.90

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Solution

The fourth proportional to 76,431,932.90, 105,484,780.41 and 45,492,200.90 is: 62,784,423.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,431,932.90 : 105,484,780.41 = 45,492,200.90 : x
  2. Step 2: Convert to fraction form
    76,431,932.90/105,484,780.41 = 45,492,200.90/x
  3. Step 3: Cross multiply
    76,431,932.90x = 105,484,780.41 × 45,492,200.90
  4. Step 4: Simplify right side
    76,431,932.90x = 4,798,734,822,304,104
  5. Step 5: Solve for x
    x = 4,798,734,822,304,104/76,431,932.90
  6. Step 6: Final answer
    x = 62,784,423.21

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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.