Home / 20,719,246.80-31,078,870.20-6,342,346.20

Finding the Fourth Proportional to 20,719,246.80, 31,078,870.20 and 6,342,346.20

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Solution

The fourth proportional to 20,719,246.80, 31,078,870.20 and 6,342,346.20 is: 9,513,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,719,246.80 : 31,078,870.20 = 6,342,346.20 : x
  2. Step 2: Convert to fraction form
    20,719,246.80/31,078,870.20 = 6,342,346.20/x
  3. Step 3: Cross multiply
    20,719,246.80x = 31,078,870.20 × 6,342,346.20
  4. Step 4: Simplify right side
    20,719,246.80x = 197,112,954,313,263.25
  5. Step 5: Solve for x
    x = 197,112,954,313,263.25/20,719,246.80
  6. Step 6: Final answer
    x = 9,513,519.30

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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.