Home / 77,559,013.40-107,031,412.41-42,752,285.15

Finding the Fourth Proportional to 77,559,013.40, 107,031,412.41 and 42,752,285.15

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Solution

The fourth proportional to 77,559,013.40, 107,031,412.41 and 42,752,285.15 is: 58,998,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,559,013.40 : 107,031,412.41 = 42,752,285.15 : x
  2. Step 2: Convert to fraction form
    77,559,013.40/107,031,412.41 = 42,752,285.15/x
  3. Step 3: Cross multiply
    77,559,013.40x = 107,031,412.41 × 42,752,285.15
  4. Step 4: Simplify right side
    77,559,013.40x = 4,575,837,463,359,568
  5. Step 5: Solve for x
    x = 4,575,837,463,359,568/77,559,013.40
  6. Step 6: Final answer
    x = 58,998,139.13

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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.