Home / 128,304,841.10-192,457,261.65-127,171,100.30

Finding the Fourth Proportional to 128,304,841.10, 192,457,261.65 and 127,171,100.30

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Solution

The fourth proportional to 128,304,841.10, 192,457,261.65 and 127,171,100.30 is: 190,756,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,841.10 : 192,457,261.65 = 127,171,100.30 : x
  2. Step 2: Convert to fraction form
    128,304,841.10/192,457,261.65 = 127,171,100.30/x
  3. Step 3: Cross multiply
    128,304,841.10x = 192,457,261.65 × 127,171,100.30
  4. Step 4: Simplify right side
    128,304,841.10x = 24,475,001,724,755,492
  5. Step 5: Solve for x
    x = 24,475,001,724,755,492/128,304,841.10
  6. Step 6: Final answer
    x = 190,756,650.45

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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.