Home / 77,404,896.72-106,818,775.08-42,597,587.16

Finding the Fourth Proportional to 77,404,896.72, 106,818,775.08 and 42,597,587.16

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Solution

The fourth proportional to 77,404,896.72, 106,818,775.08 and 42,597,587.16 is: 58,784,679.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,404,896.72 : 106,818,775.08 = 42,597,587.16 : x
  2. Step 2: Convert to fraction form
    77,404,896.72/106,818,775.08 = 42,597,587.16/x
  3. Step 3: Cross multiply
    77,404,896.72x = 106,818,775.08 × 42,597,587.16
  4. Step 4: Simplify right side
    77,404,896.72x = 4,550,222,081,484,701
  5. Step 5: Solve for x
    x = 4,550,222,081,484,701/77,404,896.72
  6. Step 6: Final answer
    x = 58,784,679.97

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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.