Home / 77,598,011.78-107,087,841.40-42,317,741.82

Finding the Fourth Proportional to 77,598,011.78, 107,087,841.40 and 42,317,741.82

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Solution

The fourth proportional to 77,598,011.78, 107,087,841.40 and 42,317,741.82 is: 58,399,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,598,011.78 : 107,087,841.40 = 42,317,741.82 : x
  2. Step 2: Convert to fraction form
    77,598,011.78/107,087,841.40 = 42,317,741.82/x
  3. Step 3: Cross multiply
    77,598,011.78x = 107,087,841.40 × 42,317,741.82
  4. Step 4: Simplify right side
    77,598,011.78x = 4,531,715,624,801,226
  5. Step 5: Solve for x
    x = 4,531,715,624,801,226/77,598,011.78
  6. Step 6: Final answer
    x = 58,399,893.51

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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.