Home / 77,559,008.12-107,031,405.10-42,752,279.82

Finding the Fourth Proportional to 77,559,008.12, 107,031,405.10 and 42,752,279.82

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Solution

The fourth proportional to 77,559,008.12, 107,031,405.10 and 42,752,279.82 is: 58,998,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,559,008.12 : 107,031,405.10 = 42,752,279.82 : x
  2. Step 2: Convert to fraction form
    77,559,008.12/107,031,405.10 = 42,752,279.82/x
  3. Step 3: Cross multiply
    77,559,008.12x = 107,031,405.10 × 42,752,279.82
  4. Step 4: Simplify right side
    77,559,008.12x = 4,575,836,580,416,792
  5. Step 5: Solve for x
    x = 4,575,836,580,416,792/77,559,008.12
  6. Step 6: Final answer
    x = 58,998,131.76

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1.5x scale

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.