Home / 20,776,498.80-31,164,748.20-18,385,014.30

Finding the Fourth Proportional to 20,776,498.80, 31,164,748.20 and 18,385,014.30

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Solution

The fourth proportional to 20,776,498.80, 31,164,748.20 and 18,385,014.30 is: 27,577,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,498.80 : 31,164,748.20 = 18,385,014.30 : x
  2. Step 2: Convert to fraction form
    20,776,498.80/31,164,748.20 = 18,385,014.30/x
  3. Step 3: Cross multiply
    20,776,498.80x = 31,164,748.20 × 18,385,014.30
  4. Step 4: Simplify right side
    20,776,498.80x = 572,964,341,312,899.25
  5. Step 5: Solve for x
    x = 572,964,341,312,899.25/20,776,498.80
  6. Step 6: Final answer
    x = 27,577,521.45

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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.