Home / 278,821,713.60-418,232,570.40-97,008,465.60

Finding the Fourth Proportional to 278,821,713.60, 418,232,570.40 and 97,008,465.60

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Solution

The fourth proportional to 278,821,713.60, 418,232,570.40 and 97,008,465.60 is: 145,512,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,821,713.60 : 418,232,570.40 = 97,008,465.60 : x
  2. Step 2: Convert to fraction form
    278,821,713.60/418,232,570.40 = 97,008,465.60/x
  3. Step 3: Cross multiply
    278,821,713.60x = 418,232,570.40 × 97,008,465.60
  4. Step 4: Simplify right side
    278,821,713.60x = 40,572,099,918,447,976
  5. Step 5: Solve for x
    x = 40,572,099,918,447,976/278,821,713.60
  6. Step 6: Final answer
    x = 145,512,698.40

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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.