Home / 97,115,999.40-145,673,999.10-75,433,206.60

Finding the Fourth Proportional to 97,115,999.40, 145,673,999.10 and 75,433,206.60

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Solution

The fourth proportional to 97,115,999.40, 145,673,999.10 and 75,433,206.60 is: 113,149,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,115,999.40 : 145,673,999.10 = 75,433,206.60 : x
  2. Step 2: Convert to fraction form
    97,115,999.40/145,673,999.10 = 75,433,206.60/x
  3. Step 3: Cross multiply
    97,115,999.40x = 145,673,999.10 × 75,433,206.60
  4. Step 4: Simplify right side
    97,115,999.40x = 10,988,656,870,358,512
  5. Step 5: Solve for x
    x = 10,988,656,870,358,512/97,115,999.40
  6. Step 6: Final answer
    x = 113,149,809.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.