Home / 78,585,569.29-108,389,989.91-57,670,536.47

Finding the Fourth Proportional to 78,585,569.29, 108,389,989.91 and 57,670,536.47

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Solution

The fourth proportional to 78,585,569.29, 108,389,989.91 and 57,670,536.47 is: 79,542,706.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,585,569.29 : 108,389,989.91 = 57,670,536.47 : x
  2. Step 2: Convert to fraction form
    78,585,569.29/108,389,989.91 = 57,670,536.47/x
  3. Step 3: Cross multiply
    78,585,569.29x = 108,389,989.91 × 57,670,536.47
  4. Step 4: Simplify right side
    78,585,569.29x = 6,250,908,865,799,234
  5. Step 5: Solve for x
    x = 6,250,908,865,799,234/78,585,569.29
  6. Step 6: Final answer
    x = 79,542,706.41

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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.