Home / 15,057,276.54-20,778,996.39-8,181,779.58

Finding the Fourth Proportional to 15,057,276.54, 20,778,996.39 and 8,181,779.58

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Solution

The fourth proportional to 15,057,276.54, 20,778,996.39 and 8,181,779.58 is: 11,290,831.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057,276.54 : 20,778,996.39 = 8,181,779.58 : x
  2. Step 2: Convert to fraction form
    15,057,276.54/20,778,996.39 = 8,181,779.58/x
  3. Step 3: Cross multiply
    15,057,276.54x = 20,778,996.39 × 8,181,779.58
  4. Step 4: Simplify right side
    15,057,276.54x = 170,009,168,356,595.72
  5. Step 5: Solve for x
    x = 170,009,168,356,595.72/15,057,276.54
  6. Step 6: Final answer
    x = 11,290,831.24

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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.