Home / 53,281,137.30-79,921,709.00-12,891,621.30

Finding the Fourth Proportional to 53,281,137.30, 79,921,709.00 and 12,891,621.30

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Solution

The fourth proportional to 53,281,137.30, 79,921,709.00 and 12,891,621.30 is: 19,337,432.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,281,137.30 : 79,921,709.00 = 12,891,621.30 : x
  2. Step 2: Convert to fraction form
    53,281,137.30/79,921,709.00 = 12,891,621.30/x
  3. Step 3: Cross multiply
    53,281,137.30x = 79,921,709.00 × 12,891,621.30
  4. Step 4: Simplify right side
    53,281,137.30x = 1,030,320,406,012,343.75
  5. Step 5: Solve for x
    x = 1,030,320,406,012,343.75/53,281,137.30
  6. Step 6: Final answer
    x = 19,337,432.69

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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.