Home / 47,781,037.12-65,935,931.52-28,208,230.40

Finding the Fourth Proportional to 47,781,037.12, 65,935,931.52 and 28,208,230.40

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Solution

The fourth proportional to 47,781,037.12, 65,935,931.52 and 28,208,230.40 is: 38,926,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,781,037.12 : 65,935,931.52 = 28,208,230.40 : x
  2. Step 2: Convert to fraction form
    47,781,037.12/65,935,931.52 = 28,208,230.40/x
  3. Step 3: Cross multiply
    47,781,037.12x = 65,935,931.52 × 28,208,230.40
  4. Step 4: Simplify right side
    47,781,037.12x = 1,859,935,947,954,782.25
  5. Step 5: Solve for x
    x = 1,859,935,947,954,782.25/47,781,037.12
  6. Step 6: Final answer
    x = 38,926,236.43

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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.