Home / 77,559,009.12-107,031,406.48-42,752,280.82

Finding the Fourth Proportional to 77,559,009.12, 107,031,406.48 and 42,752,280.82

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Solution

The fourth proportional to 77,559,009.12, 107,031,406.48 and 42,752,280.82 is: 58,998,133.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,559,009.12 : 107,031,406.48 = 42,752,280.82 : x
  2. Step 2: Convert to fraction form
    77,559,009.12/107,031,406.48 = 42,752,280.82/x
  3. Step 3: Cross multiply
    77,559,009.12x = 107,031,406.48 × 42,752,280.82
  4. Step 4: Simplify right side
    77,559,009.12x = 4,575,836,746,392,528
  5. Step 5: Solve for x
    x = 4,575,836,746,392,528/77,559,009.12
  6. Step 6: Final answer
    x = 58,998,133.14

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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.