Home / 74,279,938.40-111,419,907.60-47,070,159.20

Finding the Fourth Proportional to 74,279,938.40, 111,419,907.60 and 47,070,159.20

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Solution

The fourth proportional to 74,279,938.40, 111,419,907.60 and 47,070,159.20 is: 70,605,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,279,938.40 : 111,419,907.60 = 47,070,159.20 : x
  2. Step 2: Convert to fraction form
    74,279,938.40/111,419,907.60 = 47,070,159.20/x
  3. Step 3: Cross multiply
    74,279,938.40x = 111,419,907.60 × 47,070,159.20
  4. Step 4: Simplify right side
    74,279,938.40x = 5,244,552,788,781,290
  5. Step 5: Solve for x
    x = 5,244,552,788,781,290/74,279,938.40
  6. Step 6: Final answer
    x = 70,605,238.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.