Home / 209,425,109.63-314,197,599.20-71,281,155.11

Finding the Fourth Proportional to 209,425,109.63, 314,197,599.20 and 71,281,155.11

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Solution

The fourth proportional to 209,425,109.63, 314,197,599.20 and 71,281,155.11 is: 106,942,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,425,109.63 : 314,197,599.20 = 71,281,155.11 : x
  2. Step 2: Convert to fraction form
    209,425,109.63/314,197,599.20 = 71,281,155.11/x
  3. Step 3: Cross multiply
    209,425,109.63x = 314,197,599.20 × 71,281,155.11
  4. Step 4: Simplify right side
    209,425,109.63x = 22,396,367,801,837,420
  5. Step 5: Solve for x
    x = 22,396,367,801,837,420/209,425,109.63
  6. Step 6: Final answer
    x = 106,942,132.40

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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.