Home / 13,135,830.32-18,127,337.60-7,175,242.04

Finding the Fourth Proportional to 13,135,830.32, 18,127,337.60 and 7,175,242.04

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Solution

The fourth proportional to 13,135,830.32, 18,127,337.60 and 7,175,242.04 is: 9,901,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135,830.32 : 18,127,337.60 = 7,175,242.04 : x
  2. Step 2: Convert to fraction form
    13,135,830.32/18,127,337.60 = 7,175,242.04/x
  3. Step 3: Cross multiply
    13,135,830.32x = 18,127,337.60 × 7,175,242.04
  4. Step 4: Simplify right side
    13,135,830.32x = 130,068,034,820,792.72
  5. Step 5: Solve for x
    x = 130,068,034,820,792.72/13,135,830.32
  6. Step 6: Final answer
    x = 9,901,774.89

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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.