Home / 78,534,435.55-108,374,024.30-45,019,887.36

Finding the Fourth Proportional to 78,534,435.55, 108,374,024.30 and 45,019,887.36

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Solution

The fourth proportional to 78,534,435.55, 108,374,024.30 and 45,019,887.36 is: 62,125,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,534,435.55 : 108,374,024.30 = 45,019,887.36 : x
  2. Step 2: Convert to fraction form
    78,534,435.55/108,374,024.30 = 45,019,887.36/x
  3. Step 3: Cross multiply
    78,534,435.55x = 108,374,024.30 × 45,019,887.36
  4. Step 4: Simplify right side
    78,534,435.55x = 4,878,986,366,510,803
  5. Step 5: Solve for x
    x = 4,878,986,366,510,803/78,534,435.55
  6. Step 6: Final answer
    x = 62,125,440.04

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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.