Home / 78,040,933.64-107,688,639.52-43,227,119.48

Finding the Fourth Proportional to 78,040,933.64, 107,688,639.52 and 43,227,119.48

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Solution

The fourth proportional to 78,040,933.64, 107,688,639.52 and 43,227,119.48 is: 59,649,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,040,933.64 : 107,688,639.52 = 43,227,119.48 : x
  2. Step 2: Convert to fraction form
    78,040,933.64/107,688,639.52 = 43,227,119.48/x
  3. Step 3: Cross multiply
    78,040,933.64x = 107,688,639.52 × 43,227,119.48
  4. Step 4: Simplify right side
    78,040,933.64x = 4,655,069,687,169,689
  5. Step 5: Solve for x
    x = 4,655,069,687,169,689/78,040,933.64
  6. Step 6: Final answer
    x = 59,649,077.35

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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.