Home / 279,855,145.20-386,323,954.29-180,784,209.09

Finding the Fourth Proportional to 279,855,145.20, 386,323,954.29 and 180,784,209.09

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Solution

The fourth proportional to 279,855,145.20, 386,323,954.29 and 180,784,209.09 is: 249,562,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,855,145.20 : 386,323,954.29 = 180,784,209.09 : x
  2. Step 2: Convert to fraction form
    279,855,145.20/386,323,954.29 = 180,784,209.09/x
  3. Step 3: Cross multiply
    279,855,145.20x = 386,323,954.29 × 180,784,209.09
  4. Step 4: Simplify right side
    279,855,145.20x = 69,841,270,528,838,968
  5. Step 5: Solve for x
    x = 69,841,270,528,838,968/279,855,145.20
  6. Step 6: Final answer
    x = 249,562,217.19

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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.