Home / 81,899,409.24-122,754,635.46-30,748,803.48

Finding the Fourth Proportional to 81,899,409.24, 122,754,635.46 and 30,748,803.48

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Solution

The fourth proportional to 81,899,409.24, 122,754,635.46 and 30,748,803.48 is: 46,087,733.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,899,409.24 : 122,754,635.46 = 30,748,803.48 : x
  2. Step 2: Convert to fraction form
    81,899,409.24/122,754,635.46 = 30,748,803.48/x
  3. Step 3: Cross multiply
    81,899,409.24x = 122,754,635.46 × 30,748,803.48
  4. Step 4: Simplify right side
    81,899,409.24x = 3,774,558,162,018,579.50
  5. Step 5: Solve for x
    x = 3,774,558,162,018,579.50/81,899,409.24
  6. Step 6: Final answer
    x = 46,087,733.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.