Home / 19,120,723-28,699,980.30-10,145,275

Finding the Fourth Proportional to 19,120,723, 28,699,980.30 and 10,145,275

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Solution

The fourth proportional to 19,120,723, 28,699,980.30 and 10,145,275 is: 15,227,938.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120,723 : 28,699,980.30 = 10,145,275 : x
  2. Step 2: Convert to fraction form
    19,120,723/28,699,980.30 = 10,145,275/x
  3. Step 3: Cross multiply
    19,120,723x = 28,699,980.30 × 10,145,275
  4. Step 4: Simplify right side
    19,120,723x = 291,169,192,638,082.50
  5. Step 5: Solve for x
    x = 291,169,192,638,082.50/19,120,723
  6. Step 6: Final answer
    x = 15,227,938.43

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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.