Home / 76,650,256.32-105,508,869.12-66,843,398.40

Finding the Fourth Proportional to 76,650,256.32, 105,508,869.12 and 66,843,398.40

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Solution

The fourth proportional to 76,650,256.32, 105,508,869.12 and 66,843,398.40 is: 92,009,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,650,256.32 : 105,508,869.12 = 66,843,398.40 : x
  2. Step 2: Convert to fraction form
    76,650,256.32/105,508,869.12 = 66,843,398.40/x
  3. Step 3: Cross multiply
    76,650,256.32x = 105,508,869.12 × 66,843,398.40
  4. Step 4: Simplify right side
    76,650,256.32x = 7,052,571,373,321,618
  5. Step 5: Solve for x
    x = 7,052,571,373,321,618/76,650,256.32
  6. Step 6: Final answer
    x = 92,009,755.90

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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.