Home / 127,353,551.04-190,835,472.27-85,700,171.79

Finding the Fourth Proportional to 127,353,551.04, 190,835,472.27 and 85,700,171.79

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Solution

The fourth proportional to 127,353,551.04, 190,835,472.27 and 85,700,171.79 is: 128,419,134.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,353,551.04 : 190,835,472.27 = 85,700,171.79 : x
  2. Step 2: Convert to fraction form
    127,353,551.04/190,835,472.27 = 85,700,171.79/x
  3. Step 3: Cross multiply
    127,353,551.04x = 190,835,472.27 × 85,700,171.79
  4. Step 4: Simplify right side
    127,353,551.04x = 16,354,632,757,164,784
  5. Step 5: Solve for x
    x = 16,354,632,757,164,784/127,353,551.04
  6. Step 6: Final answer
    x = 128,419,134.16

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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.