Home / 15,345,909.63-21,177,357.12-8,470,393.65

Finding the Fourth Proportional to 15,345,909.63, 21,177,357.12 and 8,470,393.65

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Solution

The fourth proportional to 15,345,909.63, 21,177,357.12 and 8,470,393.65 is: 11,689,144.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345,909.63 : 21,177,357.12 = 8,470,393.65 : x
  2. Step 2: Convert to fraction form
    15,345,909.63/21,177,357.12 = 8,470,393.65/x
  3. Step 3: Cross multiply
    15,345,909.63x = 21,177,357.12 × 8,470,393.65
  4. Step 4: Simplify right side
    15,345,909.63x = 179,380,551,273,030.31
  5. Step 5: Solve for x
    x = 179,380,551,273,030.31/15,345,909.63
  6. Step 6: Final answer
    x = 11,689,144.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.