Home / 209,699,780.72-314,626,372.84-97,579,101.86

Finding the Fourth Proportional to 209,699,780.72, 314,626,372.84 and 97,579,101.86

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Solution

The fourth proportional to 209,699,780.72, 314,626,372.84 and 97,579,101.86 is: 146,404,344.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,699,780.72 : 314,626,372.84 = 97,579,101.86 : x
  2. Step 2: Convert to fraction form
    209,699,780.72/314,626,372.84 = 97,579,101.86/x
  3. Step 3: Cross multiply
    209,699,780.72x = 314,626,372.84 × 97,579,101.86
  4. Step 4: Simplify right side
    209,699,780.72x = 30,700,958,883,196,696
  5. Step 5: Solve for x
    x = 30,700,958,883,196,696/209,699,780.72
  6. Step 6: Final answer
    x = 146,404,344.24

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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.