Home / 3,319,065,235.20-4,978,849,795.20-989,820,422.40

Finding the Fourth Proportional to 3,319,065,235.20, 4,978,849,795.20 and 989,820,422.40

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Solution

The fourth proportional to 3,319,065,235.20, 4,978,849,795.20 and 989,820,422.40 is: 1,484,805,768.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319,065,235.20 : 4,978,849,795.20 = 989,820,422.40 : x
  2. Step 2: Convert to fraction form
    3,319,065,235.20/4,978,849,795.20 = 989,820,422.40/x
  3. Step 3: Cross multiply
    3,319,065,235.20x = 4,978,849,795.20 × 989,820,422.40
  4. Step 4: Simplify right side
    3,319,065,235.20x = 4,928,167,207,351,017,472
  5. Step 5: Solve for x
    x = 4,928,167,207,351,017,472/3,319,065,235.20
  6. Step 6: Final answer
    x = 1,484,805,768.53

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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.