Home / 398,662,720.40-597,994,080.60-291,167,296.40

Finding the Fourth Proportional to 398,662,720.40, 597,994,080.60 and 291,167,296.40

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Solution

The fourth proportional to 398,662,720.40, 597,994,080.60 and 291,167,296.40 is: 436,750,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,662,720.40 : 597,994,080.60 = 291,167,296.40 : x
  2. Step 2: Convert to fraction form
    398,662,720.40/597,994,080.60 = 291,167,296.40/x
  3. Step 3: Cross multiply
    398,662,720.40x = 597,994,080.60 × 291,167,296.40
  4. Step 4: Simplify right side
    398,662,720.40x = 174,116,319,711,505,696
  5. Step 5: Solve for x
    x = 174,116,319,711,505,696/398,662,720.40
  6. Step 6: Final answer
    x = 436,750,944.60

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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.