Home / 228,364,579.79-315,143,431.95-123,942,652.55

Finding the Fourth Proportional to 228,364,579.79, 315,143,431.95 and 123,942,652.55

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Solution

The fourth proportional to 228,364,579.79, 315,143,431.95 and 123,942,652.55 is: 171,041,029.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,364,579.79 : 315,143,431.95 = 123,942,652.55 : x
  2. Step 2: Convert to fraction form
    228,364,579.79/315,143,431.95 = 123,942,652.55/x
  3. Step 3: Cross multiply
    228,364,579.79x = 315,143,431.95 × 123,942,652.55
  4. Step 4: Simplify right side
    228,364,579.79x = 39,059,712,888,017,704
  5. Step 5: Solve for x
    x = 39,059,712,888,017,704/228,364,579.79
  6. Step 6: Final answer
    x = 171,041,029.76

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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.