Home / 127,785,824.51-191,610,541.85-66,313,089.05

Finding the Fourth Proportional to 127,785,824.51, 191,610,541.85 and 66,313,089.05

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Solution

The fourth proportional to 127,785,824.51, 191,610,541.85 and 66,313,089.05 is: 99,434,244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,785,824.51 : 191,610,541.85 = 66,313,089.05 : x
  2. Step 2: Convert to fraction form
    127,785,824.51/191,610,541.85 = 66,313,089.05/x
  3. Step 3: Cross multiply
    127,785,824.51x = 191,610,541.85 × 66,313,089.05
  4. Step 4: Simplify right side
    127,785,824.51x = 12,706,286,923,328,184
  5. Step 5: Solve for x
    x = 12,706,286,923,328,184/127,785,824.51
  6. Step 6: Final answer
    x = 99,434,244.55

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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.