Home / 215,317,145.76-297,133,869.96-122,495,675.28

Finding the Fourth Proportional to 215,317,145.76, 297,133,869.96 and 122,495,675.28

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Solution

The fourth proportional to 215,317,145.76, 297,133,869.96 and 122,495,675.28 is: 169,041,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,317,145.76 : 297,133,869.96 = 122,495,675.28 : x
  2. Step 2: Convert to fraction form
    215,317,145.76/297,133,869.96 = 122,495,675.28/x
  3. Step 3: Cross multiply
    215,317,145.76x = 297,133,869.96 × 122,495,675.28
  4. Step 4: Simplify right side
    215,317,145.76x = 36,397,614,049,309,904
  5. Step 5: Solve for x
    x = 36,397,614,049,309,904/215,317,145.76
  6. Step 6: Final answer
    x = 169,041,875.05

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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.