Home / 20,762,924.30-31,144,386.45-19,723,661.90

Finding the Fourth Proportional to 20,762,924.30, 31,144,386.45 and 19,723,661.90

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Solution

The fourth proportional to 20,762,924.30, 31,144,386.45 and 19,723,661.90 is: 29,585,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762,924.30 : 31,144,386.45 = 19,723,661.90 : x
  2. Step 2: Convert to fraction form
    20,762,924.30/31,144,386.45 = 19,723,661.90/x
  3. Step 3: Cross multiply
    20,762,924.30x = 31,144,386.45 × 19,723,661.90
  4. Step 4: Simplify right side
    20,762,924.30x = 614,281,348,422,741.25
  5. Step 5: Solve for x
    x = 614,281,348,422,741.25/20,762,924.30
  6. Step 6: Final answer
    x = 29,585,492.85

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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.