Home / 15,301,363.08-21,115,879.02-8,425,828.20

Finding the Fourth Proportional to 15,301,363.08, 21,115,879.02 and 8,425,828.20

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Solution

The fourth proportional to 15,301,363.08, 21,115,879.02 and 8,425,828.20 is: 11,627,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301,363.08 : 21,115,879.02 = 8,425,828.20 : x
  2. Step 2: Convert to fraction form
    15,301,363.08/21,115,879.02 = 8,425,828.20/x
  3. Step 3: Cross multiply
    15,301,363.08x = 21,115,879.02 × 8,425,828.20
  4. Step 4: Simplify right side
    15,301,363.08x = 177,918,768,914,504.34
  5. Step 5: Solve for x
    x = 177,918,768,914,504.34/15,301,363.08
  6. Step 6: Final answer
    x = 11,627,641.80

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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.