Home / 20,941,801.65-31,412,702.48-14,139,356.85

Finding the Fourth Proportional to 20,941,801.65, 31,412,702.48 and 14,139,356.85

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Solution

The fourth proportional to 20,941,801.65, 31,412,702.48 and 14,139,356.85 is: 21,209,035.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941,801.65 : 31,412,702.48 = 14,139,356.85 : x
  2. Step 2: Convert to fraction form
    20,941,801.65/31,412,702.48 = 14,139,356.85/x
  3. Step 3: Cross multiply
    20,941,801.65x = 31,412,702.48 × 14,139,356.85
  4. Step 4: Simplify right side
    20,941,801.65x = 444,155,409,916,903.19
  5. Step 5: Solve for x
    x = 444,155,409,916,903.19/20,941,801.65
  6. Step 6: Final answer
    x = 21,209,035.28

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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.