Home / 78,714,577.94-108,620,868.75-45,225,134.42

Finding the Fourth Proportional to 78,714,577.94, 108,620,868.75 and 45,225,134.42

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Solution

The fourth proportional to 78,714,577.94, 108,620,868.75 and 45,225,134.42 is: 62,407,669.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,714,577.94 : 108,620,868.75 = 45,225,134.42 : x
  2. Step 2: Convert to fraction form
    78,714,577.94/108,620,868.75 = 45,225,134.42/x
  3. Step 3: Cross multiply
    78,714,577.94x = 108,620,868.75 × 45,225,134.42
  4. Step 4: Simplify right side
    78,714,577.94x = 4,912,393,390,035,928
  5. Step 5: Solve for x
    x = 4,912,393,390,035,928/78,714,577.94
  6. Step 6: Final answer
    x = 62,407,669.82

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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.