Home / 14,128,111.80-21,193,722.90-5,154,607.80

Finding the Fourth Proportional to 14,128,111.80, 21,193,722.90 and 5,154,607.80

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Solution

The fourth proportional to 14,128,111.80, 21,193,722.90 and 5,154,607.80 is: 7,732,479.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128,111.80 : 21,193,722.90 = 5,154,607.80 : x
  2. Step 2: Convert to fraction form
    14,128,111.80/21,193,722.90 = 5,154,607.80/x
  3. Step 3: Cross multiply
    14,128,111.80x = 21,193,722.90 × 5,154,607.80
  4. Step 4: Simplify right side
    14,128,111.80x = 109,245,329,371,378.61
  5. Step 5: Solve for x
    x = 109,245,329,371,378.61/14,128,111.80
  6. Step 6: Final answer
    x = 7,732,479.11

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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.