Home / 279,855,153.45-386,323,965.68-180,784,217.34

Finding the Fourth Proportional to 279,855,153.45, 386,323,965.68 and 180,784,217.34

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Solution

The fourth proportional to 279,855,153.45, 386,323,965.68 and 180,784,217.34 is: 249,562,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,855,153.45 : 386,323,965.68 = 180,784,217.34 : x
  2. Step 2: Convert to fraction form
    279,855,153.45/386,323,965.68 = 180,784,217.34/x
  3. Step 3: Cross multiply
    279,855,153.45x = 386,323,965.68 × 180,784,217.34
  4. Step 4: Simplify right side
    279,855,153.45x = 69,841,275,774,239,904
  5. Step 5: Solve for x
    x = 69,841,275,774,239,904/279,855,153.45
  6. Step 6: Final answer
    x = 249,562,228.58

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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.