Home / 78,609,969.44-108,480,304.78-42,846,718.42

Finding the Fourth Proportional to 78,609,969.44, 108,480,304.78 and 42,846,718.42

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Solution

The fourth proportional to 78,609,969.44, 108,480,304.78 and 42,846,718.42 is: 59,127,679.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,609,969.44 : 108,480,304.78 = 42,846,718.42 : x
  2. Step 2: Convert to fraction form
    78,609,969.44/108,480,304.78 = 42,846,718.42/x
  3. Step 3: Cross multiply
    78,609,969.44x = 108,480,304.78 × 42,846,718.42
  4. Step 4: Simplify right side
    78,609,969.44x = 4,648,025,073,024,440
  5. Step 5: Solve for x
    x = 4,648,025,073,024,440/78,609,969.44
  6. Step 6: Final answer
    x = 59,127,679.43

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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.