Home / 13,345,887.19-20,005,085.49-5,255,583.70

Finding the Fourth Proportional to 13,345,887.19, 20,005,085.49 and 5,255,583.70

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Solution

The fourth proportional to 13,345,887.19, 20,005,085.49 and 5,255,583.70 is: 7,877,962.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345,887.19 : 20,005,085.49 = 5,255,583.70 : x
  2. Step 2: Convert to fraction form
    13,345,887.19/20,005,085.49 = 5,255,583.70/x
  3. Step 3: Cross multiply
    13,345,887.19x = 20,005,085.49 × 5,255,583.70
  4. Step 4: Simplify right side
    13,345,887.19x = 105,138,401,218,350.52
  5. Step 5: Solve for x
    x = 105,138,401,218,350.52/13,345,887.19
  6. Step 6: Final answer
    x = 7,877,962.68

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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.