Home / 20,783,319.04-28,680,078.48-11,363,937.76

Finding the Fourth Proportional to 20,783,319.04, 28,680,078.48 and 11,363,937.76

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Solution

The fourth proportional to 20,783,319.04, 28,680,078.48 and 11,363,937.76 is: 15,681,741.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,319.04 : 28,680,078.48 = 11,363,937.76 : x
  2. Step 2: Convert to fraction form
    20,783,319.04/28,680,078.48 = 11,363,937.76/x
  3. Step 3: Cross multiply
    20,783,319.04x = 28,680,078.48 × 11,363,937.76
  4. Step 4: Simplify right side
    20,783,319.04x = 325,918,626,798,635.38
  5. Step 5: Solve for x
    x = 325,918,626,798,635.38/20,783,319.04
  6. Step 6: Final answer
    x = 15,681,741.02

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Double scale
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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.