Home / 991,881,352.87-1,368,488,114.72-562,647,900.13

Finding the Fourth Proportional to 991,881,352.87, 1,368,488,114.72 and 562,647,900.13

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Solution

The fourth proportional to 991,881,352.87, 1,368,488,114.72 and 562,647,900.13 is: 776,279,301.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,881,352.87 : 1,368,488,114.72 = 562,647,900.13 : x
  2. Step 2: Convert to fraction form
    991,881,352.87/1,368,488,114.72 = 562,647,900.13/x
  3. Step 3: Cross multiply
    991,881,352.87x = 1,368,488,114.72 × 562,647,900.13
  4. Step 4: Simplify right side
    991,881,352.87x = 769,976,964,100,070,528
  5. Step 5: Solve for x
    x = 769,976,964,100,070,528/991,881,352.87
  6. Step 6: Final answer
    x = 776,279,301.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.