Home / 780,518,710.99-1,170,846,884.53-220,285,530.71

Finding the Fourth Proportional to 780,518,710.99, 1,170,846,884.53 and 220,285,530.71

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Solution

The fourth proportional to 780,518,710.99, 1,170,846,884.53 and 220,285,530.71 is: 330,447,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,518,710.99 : 1,170,846,884.53 = 220,285,530.71 : x
  2. Step 2: Convert to fraction form
    780,518,710.99/1,170,846,884.53 = 220,285,530.71/x
  3. Step 3: Cross multiply
    780,518,710.99x = 1,170,846,884.53 × 220,285,530.71
  4. Step 4: Simplify right side
    780,518,710.99x = 257,920,627,338,841,152
  5. Step 5: Solve for x
    x = 257,920,627,338,841,152/780,518,710.99
  6. Step 6: Final answer
    x = 330,447,718.56

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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.