Home / 77,951,831.47-107,573,561.10-42,669,837.82

Finding the Fourth Proportional to 77,951,831.47, 107,573,561.10 and 42,669,837.82

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Solution

The fourth proportional to 77,951,831.47, 107,573,561.10 and 42,669,837.82 is: 58,884,394.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,951,831.47 : 107,573,561.10 = 42,669,837.82 : x
  2. Step 2: Convert to fraction form
    77,951,831.47/107,573,561.10 = 42,669,837.82/x
  3. Step 3: Cross multiply
    77,951,831.47x = 107,573,561.10 × 42,669,837.82
  4. Step 4: Simplify right side
    77,951,831.47x = 4,590,146,405,318,992
  5. Step 5: Solve for x
    x = 4,590,146,405,318,992/77,951,831.47
  6. Step 6: Final answer
    x = 58,884,394.62

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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.