Home / 53,255,028.30-79,882,542.45-20,890,271.40

Finding the Fourth Proportional to 53,255,028.30, 79,882,542.45 and 20,890,271.40

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Solution

The fourth proportional to 53,255,028.30, 79,882,542.45 and 20,890,271.40 is: 31,335,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,255,028.30 : 79,882,542.45 = 20,890,271.40 : x
  2. Step 2: Convert to fraction form
    53,255,028.30/79,882,542.45 = 20,890,271.40/x
  3. Step 3: Cross multiply
    53,255,028.30x = 79,882,542.45 × 20,890,271.40
  4. Step 4: Simplify right side
    53,255,028.30x = 1,668,767,991,902,520.75
  5. Step 5: Solve for x
    x = 1,668,767,991,902,520.75/53,255,028.30
  6. Step 6: Final answer
    x = 31,335,407.10

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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.