Home / 78,077,807.46-117,262,585.47-68,733,274.53

Finding the Fourth Proportional to 78,077,807.46, 117,262,585.47 and 68,733,274.53

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Solution

The fourth proportional to 78,077,807.46, 117,262,585.47 and 68,733,274.53 is: 103,228,327.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,077,807.46 : 117,262,585.47 = 68,733,274.53 : x
  2. Step 2: Convert to fraction form
    78,077,807.46/117,262,585.47 = 68,733,274.53/x
  3. Step 3: Cross multiply
    78,077,807.46x = 117,262,585.47 × 68,733,274.53
  4. Step 4: Simplify right side
    78,077,807.46x = 8,059,841,479,207,099
  5. Step 5: Solve for x
    x = 8,059,841,479,207,099/78,077,807.46
  6. Step 6: Final answer
    x = 103,228,327.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.