Home / 20,837,315.40-31,255,973.10-19,668,145.20

Finding the Fourth Proportional to 20,837,315.40, 31,255,973.10 and 19,668,145.20

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Solution

The fourth proportional to 20,837,315.40, 31,255,973.10 and 19,668,145.20 is: 29,502,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837,315.40 : 31,255,973.10 = 19,668,145.20 : x
  2. Step 2: Convert to fraction form
    20,837,315.40/31,255,973.10 = 19,668,145.20/x
  3. Step 3: Cross multiply
    20,837,315.40x = 31,255,973.10 × 19,668,145.20
  4. Step 4: Simplify right side
    20,837,315.40x = 614,747,017,298,094.12
  5. Step 5: Solve for x
    x = 614,747,017,298,094.12/20,837,315.40
  6. Step 6: Final answer
    x = 29,502,217.80

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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.