Home / 776,928,019.20-1,165,392,028.80-532,040,006.40

Finding the Fourth Proportional to 776,928,019.20, 1,165,392,028.80 and 532,040,006.40

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Solution

The fourth proportional to 776,928,019.20, 1,165,392,028.80 and 532,040,006.40 is: 798,060,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,928,019.20 : 1,165,392,028.80 = 532,040,006.40 : x
  2. Step 2: Convert to fraction form
    776,928,019.20/1,165,392,028.80 = 532,040,006.40/x
  3. Step 3: Cross multiply
    776,928,019.20x = 1,165,392,028.80 × 532,040,006.40
  4. Step 4: Simplify right side
    776,928,019.20x = 620,035,182,461,260,928
  5. Step 5: Solve for x
    x = 620,035,182,461,260,928/776,928,019.20
  6. Step 6: Final answer
    x = 798,060,009.60

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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.