Home / 127,821,000.30-191,619,526.05-76,723,349.10

Finding the Fourth Proportional to 127,821,000.30, 191,619,526.05 and 76,723,349.10

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Solution

The fourth proportional to 127,821,000.30, 191,619,526.05 and 76,723,349.10 is: 115,017,812.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,821,000.30 : 191,619,526.05 = 76,723,349.10 : x
  2. Step 2: Convert to fraction form
    127,821,000.30/191,619,526.05 = 76,723,349.10/x
  3. Step 3: Cross multiply
    127,821,000.30x = 191,619,526.05 × 76,723,349.10
  4. Step 4: Simplify right side
    127,821,000.30x = 14,701,691,791,510,694
  5. Step 5: Solve for x
    x = 14,701,691,791,510,694/127,821,000.30
  6. Step 6: Final answer
    x = 115,017,812.07

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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.