Home / 156,786,590.06-216,354,263.03-86,227,168.49

Finding the Fourth Proportional to 156,786,590.06, 216,354,263.03 and 86,227,168.49

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Solution

The fourth proportional to 156,786,590.06, 216,354,263.03 and 86,227,168.49 is: 118,987,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,786,590.06 : 216,354,263.03 = 86,227,168.49 : x
  2. Step 2: Convert to fraction form
    156,786,590.06/216,354,263.03 = 86,227,168.49/x
  3. Step 3: Cross multiply
    156,786,590.06x = 216,354,263.03 × 86,227,168.49
  4. Step 4: Simplify right side
    156,786,590.06x = 18,655,615,493,140,952
  5. Step 5: Solve for x
    x = 18,655,615,493,140,952/156,786,590.06
  6. Step 6: Final answer
    x = 118,987,315.72

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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.