Home / 127,483,668.10-191,225,502.15-81,567,165.70

Finding the Fourth Proportional to 127,483,668.10, 191,225,502.15 and 81,567,165.70

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Solution

The fourth proportional to 127,483,668.10, 191,225,502.15 and 81,567,165.70 is: 122,350,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,483,668.10 : 191,225,502.15 = 81,567,165.70 : x
  2. Step 2: Convert to fraction form
    127,483,668.10/191,225,502.15 = 81,567,165.70/x
  3. Step 3: Cross multiply
    127,483,668.10x = 191,225,502.15 × 81,567,165.70
  4. Step 4: Simplify right side
    127,483,668.10x = 15,597,722,219,934,758
  5. Step 5: Solve for x
    x = 15,597,722,219,934,758/127,483,668.10
  6. Step 6: Final answer
    x = 122,350,748.55

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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.