Home / 20,403,009.96-28,155,875.57-11,582,384.52

Finding the Fourth Proportional to 20,403,009.96, 28,155,875.57 and 11,582,384.52

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Solution

The fourth proportional to 20,403,009.96, 28,155,875.57 and 11,582,384.52 is: 15,983,532.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403,009.96 : 28,155,875.57 = 11,582,384.52 : x
  2. Step 2: Convert to fraction form
    20,403,009.96/28,155,875.57 = 11,582,384.52/x
  3. Step 3: Cross multiply
    20,403,009.96x = 28,155,875.57 × 11,582,384.52
  4. Step 4: Simplify right side
    20,403,009.96x = 326,112,177,291,102.25
  5. Step 5: Solve for x
    x = 326,112,177,291,102.25/20,403,009.96
  6. Step 6: Final answer
    x = 15,983,532.72

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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.