Home / 78,534,437.42-108,374,026.88-45,019,889.24

Finding the Fourth Proportional to 78,534,437.42, 108,374,026.88 and 45,019,889.24

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Solution

The fourth proportional to 78,534,437.42, 108,374,026.88 and 45,019,889.24 is: 62,125,442.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,534,437.42 : 108,374,026.88 = 45,019,889.24 : x
  2. Step 2: Convert to fraction form
    78,534,437.42/108,374,026.88 = 45,019,889.24/x
  3. Step 3: Cross multiply
    78,534,437.42x = 108,374,026.88 × 45,019,889.24
  4. Step 4: Simplify right side
    78,534,437.42x = 4,878,986,686,201,062
  5. Step 5: Solve for x
    x = 4,878,986,686,201,062/78,534,437.42
  6. Step 6: Final answer
    x = 62,125,442.63

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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.