Home / 127,689,681.20-191,561,421.72-41,421,351.92

Finding the Fourth Proportional to 127,689,681.20, 191,561,421.72 and 41,421,351.92

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Solution

The fourth proportional to 127,689,681.20, 191,561,421.72 and 41,421,351.92 is: 62,140,753.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,689,681.20 : 191,561,421.72 = 41,421,351.92 : x
  2. Step 2: Convert to fraction form
    127,689,681.20/191,561,421.72 = 41,421,351.92/x
  3. Step 3: Cross multiply
    127,689,681.20x = 191,561,421.72 × 41,421,351.92
  4. Step 4: Simplify right side
    127,689,681.20x = 7,934,733,063,359,652
  5. Step 5: Solve for x
    x = 7,934,733,063,359,652/127,689,681.20
  6. Step 6: Final answer
    x = 62,140,753.97

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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.