Home / 290,015,999.40-435,023,999.10-175,354,213.80

Finding the Fourth Proportional to 290,015,999.40, 435,023,999.10 and 175,354,213.80

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Solution

The fourth proportional to 290,015,999.40, 435,023,999.10 and 175,354,213.80 is: 263,031,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,015,999.40 : 435,023,999.10 = 175,354,213.80 : x
  2. Step 2: Convert to fraction form
    290,015,999.40/435,023,999.10 = 175,354,213.80/x
  3. Step 3: Cross multiply
    290,015,999.40x = 435,023,999.10 × 175,354,213.80
  4. Step 4: Simplify right side
    290,015,999.40x = 76,283,291,346,312,416
  5. Step 5: Solve for x
    x = 76,283,291,346,312,416/290,015,999.40
  6. Step 6: Final answer
    x = 263,031,320.70

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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.