Home / 65,619,710,579.40-90,569,768,470.92-39,893,524,017.84

Finding the Fourth Proportional to 65,619,710,579.40, 90,569,768,470.92 and 39,893,524,017.84

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Solution

The fourth proportional to 65,619,710,579.40, 90,569,768,470.92 and 39,893,524,017.84 is: 55,061,919,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,619,710,579.40 : 90,569,768,470.92 = 39,893,524,017.84 : x
  2. Step 2: Convert to fraction form
    65,619,710,579.40/90,569,768,470.92 = 39,893,524,017.84/x
  3. Step 3: Cross multiply
    65,619,710,579.40x = 90,569,768,470.92 × 39,893,524,017.84
  4. Step 4: Simplify right side
    65,619,710,579.40x = 3,613,147,233,784,854,740,992
  5. Step 5: Solve for x
    x = 3,613,147,233,784,854,740,992/65,619,710,579.40
  6. Step 6: Final answer
    x = 55,061,919,686.66

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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.