Home / 12,215,888.57-18,319,763.90-4,927,465.86

Finding the Fourth Proportional to 12,215,888.57, 18,319,763.90 and 4,927,465.86

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Solution

The fourth proportional to 12,215,888.57, 18,319,763.90 and 4,927,465.86 is: 7,389,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215,888.57 : 18,319,763.90 = 4,927,465.86 : x
  2. Step 2: Convert to fraction form
    12,215,888.57/18,319,763.90 = 4,927,465.86/x
  3. Step 3: Cross multiply
    12,215,888.57x = 18,319,763.90 × 4,927,465.86
  4. Step 4: Simplify right side
    12,215,888.57x = 90,270,011,155,873.12
  5. Step 5: Solve for x
    x = 90,270,011,155,873.12/12,215,888.57
  6. Step 6: Final answer
    x = 7,389,557.52

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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.