Home / 13,156,743.30-19,735,114.95-12,589,872.90

Finding the Fourth Proportional to 13,156,743.30, 19,735,114.95 and 12,589,872.90

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Solution

The fourth proportional to 13,156,743.30, 19,735,114.95 and 12,589,872.90 is: 18,884,809.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156,743.30 : 19,735,114.95 = 12,589,872.90 : x
  2. Step 2: Convert to fraction form
    13,156,743.30/19,735,114.95 = 12,589,872.90/x
  3. Step 3: Cross multiply
    13,156,743.30x = 19,735,114.95 × 12,589,872.90
  4. Step 4: Simplify right side
    13,156,743.30x = 248,462,588,887,389.84
  5. Step 5: Solve for x
    x = 248,462,588,887,389.84/13,156,743.30
  6. Step 6: Final answer
    x = 18,884,809.35

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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.