Home / 156,372,567.39-215,794,169.64-86,757,782.13

Finding the Fourth Proportional to 156,372,567.39, 215,794,169.64 and 86,757,782.13

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Solution

The fourth proportional to 156,372,567.39, 215,794,169.64 and 86,757,782.13 is: 119,725,754.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,372,567.39 : 215,794,169.64 = 86,757,782.13 : x
  2. Step 2: Convert to fraction form
    156,372,567.39/215,794,169.64 = 86,757,782.13/x
  3. Step 3: Cross multiply
    156,372,567.39x = 215,794,169.64 × 86,757,782.13
  4. Step 4: Simplify right side
    156,372,567.39x = 18,721,823,554,551,380
  5. Step 5: Solve for x
    x = 18,721,823,554,551,380/156,372,567.39
  6. Step 6: Final answer
    x = 119,725,754.12

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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.