Home / 12,420,870.13-18,633,054.80-4,332,666.16

Finding the Fourth Proportional to 12,420,870.13, 18,633,054.80 and 4,332,666.16

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Solution

The fourth proportional to 12,420,870.13, 18,633,054.80 and 4,332,666.16 is: 6,499,609.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420,870.13 : 18,633,054.80 = 4,332,666.16 : x
  2. Step 2: Convert to fraction form
    12,420,870.13/18,633,054.80 = 4,332,666.16/x
  3. Step 3: Cross multiply
    12,420,870.13x = 18,633,054.80 × 4,332,666.16
  4. Step 4: Simplify right side
    12,420,870.13x = 80,730,805,989,385.58
  5. Step 5: Solve for x
    x = 80,730,805,989,385.58/12,420,870.13
  6. Step 6: Final answer
    x = 6,499,609.54

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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.