Home / 15,105,278.48-20,828,788.91-10,201,987.80

Finding the Fourth Proportional to 15,105,278.48, 20,828,788.91 and 10,201,987.80

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Solution

The fourth proportional to 15,105,278.48, 20,828,788.91 and 10,201,987.80 is: 14,067,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105,278.48 : 20,828,788.91 = 10,201,987.80 : x
  2. Step 2: Convert to fraction form
    15,105,278.48/20,828,788.91 = 10,201,987.80/x
  3. Step 3: Cross multiply
    15,105,278.48x = 20,828,788.91 × 10,201,987.80
  4. Step 4: Simplify right side
    15,105,278.48x = 212,495,050,244,451.34
  5. Step 5: Solve for x
    x = 212,495,050,244,451.34/15,105,278.48
  6. Step 6: Final answer
    x = 14,067,602.30

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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.