Home / 14,012,142.30-21,018,869.55-4,428,270.90

Finding the Fourth Proportional to 14,012,142.30, 21,018,869.55 and 4,428,270.90

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Solution

The fourth proportional to 14,012,142.30, 21,018,869.55 and 4,428,270.90 is: 6,642,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012,142.30 : 21,018,869.55 = 4,428,270.90 : x
  2. Step 2: Convert to fraction form
    14,012,142.30/21,018,869.55 = 4,428,270.90/x
  3. Step 3: Cross multiply
    14,012,142.30x = 21,018,869.55 × 4,428,270.90
  4. Step 4: Simplify right side
    14,012,142.30x = 93,077,248,379,161.11
  5. Step 5: Solve for x
    x = 93,077,248,379,161.11/14,012,142.30
  6. Step 6: Final answer
    x = 6,642,613.70

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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.