Home / 66,308,689.71-91,512,180.99-38,806,639.83

Finding the Fourth Proportional to 66,308,689.71, 91,512,180.99 and 38,806,639.83

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Solution

The fourth proportional to 66,308,689.71, 91,512,180.99 and 38,806,639.83 is: 53,556,785.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,308,689.71 : 91,512,180.99 = 38,806,639.83 : x
  2. Step 2: Convert to fraction form
    66,308,689.71/91,512,180.99 = 38,806,639.83/x
  3. Step 3: Cross multiply
    66,308,689.71x = 91,512,180.99 × 38,806,639.83
  4. Step 4: Simplify right side
    66,308,689.71x = 3,551,280,247,736,702.50
  5. Step 5: Solve for x
    x = 3,551,280,247,736,702.50/66,308,689.71
  6. Step 6: Final answer
    x = 53,556,785.14

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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.