Home / 66,495,345.60-99,733,687.20-21,061,732.80

Finding the Fourth Proportional to 66,495,345.60, 99,733,687.20 and 21,061,732.80

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Solution

The fourth proportional to 66,495,345.60, 99,733,687.20 and 21,061,732.80 is: 31,589,643.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,495,345.60 : 99,733,687.20 = 21,061,732.80 : x
  2. Step 2: Convert to fraction form
    66,495,345.60/99,733,687.20 = 21,061,732.80/x
  3. Step 3: Cross multiply
    66,495,345.60x = 99,733,687.20 × 21,061,732.80
  4. Step 4: Simplify right side
    66,495,345.60x = 2,100,564,270,965,180.25
  5. Step 5: Solve for x
    x = 2,100,564,270,965,180.25/66,495,345.60
  6. Step 6: Final answer
    x = 31,589,643.64

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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.