Home / 86,983,920.93-120,038,285.34-51,221,921.97

Finding the Fourth Proportional to 86,983,920.93, 120,038,285.34 and 51,221,921.97

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Solution

The fourth proportional to 86,983,920.93, 120,038,285.34 and 51,221,921.97 is: 70,686,531.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,983,920.93 : 120,038,285.34 = 51,221,921.97 : x
  2. Step 2: Convert to fraction form
    86,983,920.93/120,038,285.34 = 51,221,921.97/x
  3. Step 3: Cross multiply
    86,983,920.93x = 120,038,285.34 × 51,221,921.97
  4. Step 4: Simplify right side
    86,983,920.93x = 6,148,591,685,098,075
  5. Step 5: Solve for x
    x = 6,148,591,685,098,075/86,983,920.93
  6. Step 6: Final answer
    x = 70,686,531.71

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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.