Home / 772,689,619.80-1,159,090,416.90-465,319,891.80

Finding the Fourth Proportional to 772,689,619.80, 1,159,090,416.90 and 465,319,891.80

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Solution

The fourth proportional to 772,689,619.80, 1,159,090,416.90 and 465,319,891.80 is: 698,013,553.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,689,619.80 : 1,159,090,416.90 = 465,319,891.80 : x
  2. Step 2: Convert to fraction form
    772,689,619.80/1,159,090,416.90 = 465,319,891.80/x
  3. Step 3: Cross multiply
    772,689,619.80x = 1,159,090,416.90 × 465,319,891.80
  4. Step 4: Simplify right side
    772,689,619.80x = 539,347,827,378,324,928
  5. Step 5: Solve for x
    x = 539,347,827,378,324,928/772,689,619.80
  6. Step 6: Final answer
    x = 698,013,553.64

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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.