Home / 20,386,110.02-28,132,835.63-11,218,752.77

Finding the Fourth Proportional to 20,386,110.02, 28,132,835.63 and 11,218,752.77

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Solution

The fourth proportional to 20,386,110.02, 28,132,835.63 and 11,218,752.77 is: 15,481,880.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,110.02 : 28,132,835.63 = 11,218,752.77 : x
  2. Step 2: Convert to fraction form
    20,386,110.02/28,132,835.63 = 11,218,752.77/x
  3. Step 3: Cross multiply
    20,386,110.02x = 28,132,835.63 × 11,218,752.77
  4. Step 4: Simplify right side
    20,386,110.02x = 315,615,327,455,259.25
  5. Step 5: Solve for x
    x = 315,615,327,455,259.25/20,386,110.02
  6. Step 6: Final answer
    x = 15,481,880.91

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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.