Home / 28,276,849.68-42,412,098.15-7,809,478.92

Finding the Fourth Proportional to 28,276,849.68, 42,412,098.15 and 7,809,478.92

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Solution

The fourth proportional to 28,276,849.68, 42,412,098.15 and 7,809,478.92 is: 11,713,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276,849.68 : 42,412,098.15 = 7,809,478.92 : x
  2. Step 2: Convert to fraction form
    28,276,849.68/42,412,098.15 = 7,809,478.92/x
  3. Step 3: Cross multiply
    28,276,849.68x = 42,412,098.15 × 7,809,478.92
  4. Step 4: Simplify right side
    28,276,849.68x = 331,216,386,455,396
  5. Step 5: Solve for x
    x = 331,216,386,455,396/28,276,849.68
  6. Step 6: Final answer
    x = 11,713,341.13

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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.