Home / 288,275,302.56-397,817,936.64-156,113,274.72

Finding the Fourth Proportional to 288,275,302.56, 397,817,936.64 and 156,113,274.72

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Solution

The fourth proportional to 288,275,302.56, 397,817,936.64 and 156,113,274.72 is: 215,435,246.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,275,302.56 : 397,817,936.64 = 156,113,274.72 : x
  2. Step 2: Convert to fraction form
    288,275,302.56/397,817,936.64 = 156,113,274.72/x
  3. Step 3: Cross multiply
    288,275,302.56x = 397,817,936.64 × 156,113,274.72
  4. Step 4: Simplify right side
    288,275,302.56x = 62,104,660,831,223,872
  5. Step 5: Solve for x
    x = 62,104,660,831,223,872/288,275,302.56
  6. Step 6: Final answer
    x = 215,435,246.38

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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.