Home / 78,534,438.93-108,374,028.95-45,019,890.74

Finding the Fourth Proportional to 78,534,438.93, 108,374,028.95 and 45,019,890.74

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Solution

The fourth proportional to 78,534,438.93, 108,374,028.95 and 45,019,890.74 is: 62,125,444.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,534,438.93 : 108,374,028.95 = 45,019,890.74 : x
  2. Step 2: Convert to fraction form
    78,534,438.93/108,374,028.95 = 45,019,890.74/x
  3. Step 3: Cross multiply
    78,534,438.93x = 108,374,028.95 × 45,019,890.74
  4. Step 4: Simplify right side
    78,534,438.93x = 4,878,986,941,615,627
  5. Step 5: Solve for x
    x = 4,878,986,941,615,627/78,534,438.93
  6. Step 6: Final answer
    x = 62,125,444.69

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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.