Home / 276,558,909.78-381,639,937.72-151,115,411.69

Finding the Fourth Proportional to 276,558,909.78, 381,639,937.72 and 151,115,411.69

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Solution

The fourth proportional to 276,558,909.78, 381,639,937.72 and 151,115,411.69 is: 208,533,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,558,909.78 : 381,639,937.72 = 151,115,411.69 : x
  2. Step 2: Convert to fraction form
    276,558,909.78/381,639,937.72 = 151,115,411.69/x
  3. Step 3: Cross multiply
    276,558,909.78x = 381,639,937.72 × 151,115,411.69
  4. Step 4: Simplify right side
    276,558,909.78x = 57,671,676,306,409,248
  5. Step 5: Solve for x
    x = 57,671,676,306,409,248/276,558,909.78
  6. Step 6: Final answer
    x = 208,533,062.10

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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.