Home / 74,914,390.88-103,390,252.08-42,321,442.40

Finding the Fourth Proportional to 74,914,390.88, 103,390,252.08 and 42,321,442.40

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Solution

The fourth proportional to 74,914,390.88, 103,390,252.08 and 42,321,442.40 is: 58,408,331.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,914,390.88 : 103,390,252.08 = 42,321,442.40 : x
  2. Step 2: Convert to fraction form
    74,914,390.88/103,390,252.08 = 42,321,442.40/x
  3. Step 3: Cross multiply
    74,914,390.88x = 103,390,252.08 × 42,321,442.40
  4. Step 4: Simplify right side
    74,914,390.88x = 4,375,624,598,125,200
  5. Step 5: Solve for x
    x = 4,375,624,598,125,200/74,914,390.88
  6. Step 6: Final answer
    x = 58,408,331.79

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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.