Home / 51,939,200-71,676,165.76-28,419,946.40

Finding the Fourth Proportional to 51,939,200, 71,676,165.76 and 28,419,946.40

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Solution

The fourth proportional to 51,939,200, 71,676,165.76 and 28,419,946.40 is: 39,219,564.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,939,200 : 71,676,165.76 = 28,419,946.40 : x
  2. Step 2: Convert to fraction form
    51,939,200/71,676,165.76 = 28,419,946.40/x
  3. Step 3: Cross multiply
    51,939,200x = 71,676,165.76 × 28,419,946.40
  4. Step 4: Simplify right side
    51,939,200x = 2,037,032,788,556,234.50
  5. Step 5: Solve for x
    x = 2,037,032,788,556,234.50/51,939,200
  6. Step 6: Final answer
    x = 39,219,564.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.