Home / 78,265,836.47-108,015,487.26-44,778,426.86

Finding the Fourth Proportional to 78,265,836.47, 108,015,487.26 and 44,778,426.86

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Solution

The fourth proportional to 78,265,836.47, 108,015,487.26 and 44,778,426.86 is: 61,799,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,265,836.47 : 108,015,487.26 = 44,778,426.86 : x
  2. Step 2: Convert to fraction form
    78,265,836.47/108,015,487.26 = 44,778,426.86/x
  3. Step 3: Cross multiply
    78,265,836.47x = 108,015,487.26 × 44,778,426.86
  4. Step 4: Simplify right side
    78,265,836.47x = 4,836,763,596,019,172
  5. Step 5: Solve for x
    x = 4,836,763,596,019,172/78,265,836.47
  6. Step 6: Final answer
    x = 61,799,168.25

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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.