Home / 53,156,430.60-79,730,498.70-20,802,049.80

Finding the Fourth Proportional to 53,156,430.60, 79,730,498.70 and 20,802,049.80

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Solution

The fourth proportional to 53,156,430.60, 79,730,498.70 and 20,802,049.80 is: 31,201,451.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,156,430.60 : 79,730,498.70 = 20,802,049.80 : x
  2. Step 2: Convert to fraction form
    53,156,430.60/79,730,498.70 = 20,802,049.80/x
  3. Step 3: Cross multiply
    53,156,430.60x = 79,730,498.70 × 20,802,049.80
  4. Step 4: Simplify right side
    53,156,430.60x = 1,658,557,804,536,235.50
  5. Step 5: Solve for x
    x = 1,658,557,804,536,235.50/53,156,430.60
  6. Step 6: Final answer
    x = 31,201,451.75

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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.