Home / 780,518,711.99-1,170,846,886.03-220,285,531.71

Finding the Fourth Proportional to 780,518,711.99, 1,170,846,886.03 and 220,285,531.71

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Solution

The fourth proportional to 780,518,711.99, 1,170,846,886.03 and 220,285,531.71 is: 330,447,720.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,518,711.99 : 1,170,846,886.03 = 220,285,531.71 : x
  2. Step 2: Convert to fraction form
    780,518,711.99/1,170,846,886.03 = 220,285,531.71/x
  3. Step 3: Cross multiply
    780,518,711.99x = 1,170,846,886.03 × 220,285,531.71
  4. Step 4: Simplify right side
    780,518,711.99x = 257,920,628,840,116,320
  5. Step 5: Solve for x
    x = 257,920,628,840,116,320/780,518,711.99
  6. Step 6: Final answer
    x = 330,447,720.06

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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.