Home / 107,648,063.88-148,748,649.12-76,654,424.76

Finding the Fourth Proportional to 107,648,063.88, 148,748,649.12 and 76,654,424.76

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Solution

The fourth proportional to 107,648,063.88, 148,748,649.12 and 76,654,424.76 is: 105,921,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,648,063.88 : 148,748,649.12 = 76,654,424.76 : x
  2. Step 2: Convert to fraction form
    107,648,063.88/148,748,649.12 = 76,654,424.76/x
  3. Step 3: Cross multiply
    107,648,063.88x = 148,748,649.12 × 76,654,424.76
  4. Step 4: Simplify right side
    107,648,063.88x = 11,402,242,132,120,682
  5. Step 5: Solve for x
    x = 11,402,242,132,120,682/107,648,063.88
  6. Step 6: Final answer
    x = 105,921,478.95

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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.