Home / 128,016,000.40-192,107,981.40-73,428,480.40

Finding the Fourth Proportional to 128,016,000.40, 192,107,981.40 and 73,428,480.40

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Solution

The fourth proportional to 128,016,000.40, 192,107,981.40 and 73,428,480.40 is: 110,190,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,016,000.40 : 192,107,981.40 = 73,428,480.40 : x
  2. Step 2: Convert to fraction form
    128,016,000.40/192,107,981.40 = 73,428,480.40/x
  3. Step 3: Cross multiply
    128,016,000.40x = 192,107,981.40 × 73,428,480.40
  4. Step 4: Simplify right side
    128,016,000.40x = 14,106,197,146,913,466
  5. Step 5: Solve for x
    x = 14,106,197,146,913,466/128,016,000.40
  6. Step 6: Final answer
    x = 110,190,891.00

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1.5x scale

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.