Home / 20,590,221.08-28,402,699.66-12,841,811.30

Finding the Fourth Proportional to 20,590,221.08, 28,402,699.66 and 12,841,811.30

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Solution

The fourth proportional to 20,590,221.08, 28,402,699.66 and 12,841,811.30 is: 17,714,336.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590,221.08 : 28,402,699.66 = 12,841,811.30 : x
  2. Step 2: Convert to fraction form
    20,590,221.08/28,402,699.66 = 12,841,811.30/x
  3. Step 3: Cross multiply
    20,590,221.08x = 28,402,699.66 × 12,841,811.30
  4. Step 4: Simplify right side
    20,590,221.08x = 364,742,109,270,176.12
  5. Step 5: Solve for x
    x = 364,742,109,270,176.12/20,590,221.08
  6. Step 6: Final answer
    x = 17,714,336.72

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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.