Home / 78,315,990.80-117,222,434.04-41,833,155.92

Finding the Fourth Proportional to 78,315,990.80, 117,222,434.04 and 41,833,155.92

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Solution

The fourth proportional to 78,315,990.80, 117,222,434.04 and 41,833,155.92 is: 62,615,365.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,315,990.80 : 117,222,434.04 = 41,833,155.92 : x
  2. Step 2: Convert to fraction form
    78,315,990.80/117,222,434.04 = 41,833,155.92/x
  3. Step 3: Cross multiply
    78,315,990.80x = 117,222,434.04 × 41,833,155.92
  4. Step 4: Simplify right side
    78,315,990.80x = 4,903,784,360,517,236
  5. Step 5: Solve for x
    x = 4,903,784,360,517,236/78,315,990.80
  6. Step 6: Final answer
    x = 62,615,365.14

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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.