Home / 71,442,028.20-107,163,042.30-70,938,143.40

Finding the Fourth Proportional to 71,442,028.20, 107,163,042.30 and 70,938,143.40

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Solution

The fourth proportional to 71,442,028.20, 107,163,042.30 and 70,938,143.40 is: 106,407,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,442,028.20 : 107,163,042.30 = 70,938,143.40 : x
  2. Step 2: Convert to fraction form
    71,442,028.20/107,163,042.30 = 70,938,143.40/x
  3. Step 3: Cross multiply
    71,442,028.20x = 107,163,042.30 × 70,938,143.40
  4. Step 4: Simplify right side
    71,442,028.20x = 7,601,947,261,857,666
  5. Step 5: Solve for x
    x = 7,601,947,261,857,666/71,442,028.20
  6. Step 6: Final answer
    x = 106,407,215.10

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1.5x scale

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.