Home / 768,015,888.24-1,059,864,735.96-415,591,883.76

Finding the Fourth Proportional to 768,015,888.24, 1,059,864,735.96 and 415,591,883.76

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Solution

The fourth proportional to 768,015,888.24, 1,059,864,735.96 and 415,591,883.76 is: 573,518,320.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,015,888.24 : 1,059,864,735.96 = 415,591,883.76 : x
  2. Step 2: Convert to fraction form
    768,015,888.24/1,059,864,735.96 = 415,591,883.76/x
  3. Step 3: Cross multiply
    768,015,888.24x = 1,059,864,735.96 × 415,591,883.76
  4. Step 4: Simplify right side
    768,015,888.24x = 440,471,182,148,411,392
  5. Step 5: Solve for x
    x = 440,471,182,148,411,392/768,015,888.24
  6. Step 6: Final answer
    x = 573,518,320.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.