Home / 86,971,944.62-120,021,360.78-47,814,387.59

Finding the Fourth Proportional to 86,971,944.62, 120,021,360.78 and 47,814,387.59

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Solution

The fourth proportional to 86,971,944.62, 120,021,360.78 and 47,814,387.59 is: 65,983,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,971,944.62 : 120,021,360.78 = 47,814,387.59 : x
  2. Step 2: Convert to fraction form
    86,971,944.62/120,021,360.78 = 47,814,387.59/x
  3. Step 3: Cross multiply
    86,971,944.62x = 120,021,360.78 × 47,814,387.59
  4. Step 4: Simplify right side
    86,971,944.62x = 5,738,747,862,814,038
  5. Step 5: Solve for x
    x = 5,738,747,862,814,038/86,971,944.62
  6. Step 6: Final answer
    x = 65,983,897.32

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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.