Home / 128,196,441.28-192,160,292.48-47,365,854.40

Finding the Fourth Proportional to 128,196,441.28, 192,160,292.48 and 47,365,854.40

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Solution

The fourth proportional to 128,196,441.28, 192,160,292.48 and 47,365,854.40 is: 70,999,134.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,196,441.28 : 192,160,292.48 = 47,365,854.40 : x
  2. Step 2: Convert to fraction form
    128,196,441.28/192,160,292.48 = 47,365,854.40/x
  3. Step 3: Cross multiply
    128,196,441.28x = 192,160,292.48 × 47,365,854.40
  4. Step 4: Simplify right side
    128,196,441.28x = 9,101,836,435,069,094
  5. Step 5: Solve for x
    x = 9,101,836,435,069,094/128,196,441.28
  6. Step 6: Final answer
    x = 70,999,134.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.