Home / 156,161,140.11-215,502,369.08-86,556,978.27

Finding the Fourth Proportional to 156,161,140.11, 215,502,369.08 and 86,556,978.27

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Solution

The fourth proportional to 156,161,140.11, 215,502,369.08 and 86,556,978.27 is: 119,448,627.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,161,140.11 : 215,502,369.08 = 86,556,978.27 : x
  2. Step 2: Convert to fraction form
    156,161,140.11/215,502,369.08 = 86,556,978.27/x
  3. Step 3: Cross multiply
    156,161,140.11x = 215,502,369.08 × 86,556,978.27
  4. Step 4: Simplify right side
    156,161,140.11x = 18,653,233,877,158,292
  5. Step 5: Solve for x
    x = 18,653,233,877,158,292/156,161,140.11
  6. Step 6: Final answer
    x = 119,448,627.64

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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.