Home / 87,840,854,263.88-121,222,935,965.60-49,777,795,643.12

Finding the Fourth Proportional to 87,840,854,263.88, 121,222,935,965.60 and 49,777,795,643.12

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Solution

The fourth proportional to 87,840,854,263.88, 121,222,935,965.60 and 49,777,795,643.12 is: 68,694,807,038.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840,854,263.88 : 121,222,935,965.60 = 49,777,795,643.12 : x
  2. Step 2: Convert to fraction form
    87,840,854,263.88/121,222,935,965.60 = 49,777,795,643.12/x
  3. Step 3: Cross multiply
    87,840,854,263.88x = 121,222,935,965.60 × 49,777,795,643.12
  4. Step 4: Simplify right side
    87,840,854,263.88x = 6,034,210,533,754,658,619,392
  5. Step 5: Solve for x
    x = 6,034,210,533,754,658,619,392/87,840,854,263.88
  6. Step 6: Final answer
    x = 68,694,807,038.50

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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.