Home / 77,972,685.39-107,598,042.93-42,683,663.81

Finding the Fourth Proportional to 77,972,685.39, 107,598,042.93 and 42,683,663.81

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Solution

The fourth proportional to 77,972,685.39, 107,598,042.93 and 42,683,663.81 is: 58,901,122.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,972,685.39 : 107,598,042.93 = 42,683,663.81 : x
  2. Step 2: Convert to fraction form
    77,972,685.39/107,598,042.93 = 42,683,663.81/x
  3. Step 3: Cross multiply
    77,972,685.39x = 107,598,042.93 × 42,683,663.81
  4. Step 4: Simplify right side
    77,972,685.39x = 4,592,678,690,500,077
  5. Step 5: Solve for x
    x = 4,592,678,690,500,077/77,972,685.39
  6. Step 6: Final answer
    x = 58,901,122.46

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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.