Home / 12,713,039.10-19,069,558.65-9,111,195.90

Finding the Fourth Proportional to 12,713,039.10, 19,069,558.65 and 9,111,195.90

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Solution

The fourth proportional to 12,713,039.10, 19,069,558.65 and 9,111,195.90 is: 13,666,793.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713,039.10 : 19,069,558.65 = 9,111,195.90 : x
  2. Step 2: Convert to fraction form
    12,713,039.10/19,069,558.65 = 9,111,195.90/x
  3. Step 3: Cross multiply
    12,713,039.10x = 19,069,558.65 × 9,111,195.90
  4. Step 4: Simplify right side
    12,713,039.10x = 173,746,484,586,689.53
  5. Step 5: Solve for x
    x = 173,746,484,586,689.53/12,713,039.10
  6. Step 6: Final answer
    x = 13,666,793.85

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Similar ratio
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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.