Home / 28,453,976-39,266,488.80-15,576,920

Finding the Fourth Proportional to 28,453,976, 39,266,488.80 and 15,576,920

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Solution

The fourth proportional to 28,453,976, 39,266,488.80 and 15,576,920 is: 21,496,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453,976 : 39,266,488.80 = 15,576,920 : x
  2. Step 2: Convert to fraction form
    28,453,976/39,266,488.80 = 15,576,920/x
  3. Step 3: Cross multiply
    28,453,976x = 39,266,488.80 × 15,576,920
  4. Step 4: Simplify right side
    28,453,976x = 611,650,954,718,496
  5. Step 5: Solve for x
    x = 611,650,954,718,496/28,453,976
  6. Step 6: Final answer
    x = 21,496,150.65

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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.