Home / 157,270,846.16-217,025,985.48-87,661,960.40

Finding the Fourth Proportional to 157,270,846.16, 217,025,985.48 and 87,661,960.40

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Solution

The fourth proportional to 157,270,846.16, 217,025,985.48 and 87,661,960.40 is: 120,969,167.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,270,846.16 : 217,025,985.48 = 87,661,960.40 : x
  2. Step 2: Convert to fraction form
    157,270,846.16/217,025,985.48 = 87,661,960.40/x
  3. Step 3: Cross multiply
    157,270,846.16x = 217,025,985.48 × 87,661,960.40
  4. Step 4: Simplify right side
    157,270,846.16x = 19,024,923,344,918,736
  5. Step 5: Solve for x
    x = 19,024,923,344,918,736/157,270,846.16
  6. Step 6: Final answer
    x = 120,969,167.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.