Home / 65,887,621,147.98-90,934,856,213.95-40,181,814,331.88

Finding the Fourth Proportional to 65,887,621,147.98, 90,934,856,213.95 and 40,181,814,331.88

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Solution

The fourth proportional to 65,887,621,147.98, 90,934,856,213.95 and 40,181,814,331.88 is: 55,456,965,132.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,887,621,147.98 : 90,934,856,213.95 = 40,181,814,331.88 : x
  2. Step 2: Convert to fraction form
    65,887,621,147.98/90,934,856,213.95 = 40,181,814,331.88/x
  3. Step 3: Cross multiply
    65,887,621,147.98x = 90,934,856,213.95 × 40,181,814,331.88
  4. Step 4: Simplify right side
    65,887,621,147.98x = 3,653,927,508,684,849,020,928
  5. Step 5: Solve for x
    x = 3,653,927,508,684,849,020,928/65,887,621,147.98
  6. Step 6: Final answer
    x = 55,456,965,132.77

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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.