Home / 1,087,554,067.11-1,501,004,605.77-641,626,451.10

Finding the Fourth Proportional to 1,087,554,067.11, 1,501,004,605.77 and 641,626,451.10

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Solution

The fourth proportional to 1,087,554,067.11, 1,501,004,605.77 and 641,626,451.10 is: 885,550,693.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,554,067.11 : 1,501,004,605.77 = 641,626,451.10 : x
  2. Step 2: Convert to fraction form
    1,087,554,067.11/1,501,004,605.77 = 641,626,451.10/x
  3. Step 3: Cross multiply
    1,087,554,067.11x = 1,501,004,605.77 × 641,626,451.10
  4. Step 4: Simplify right side
    1,087,554,067.11x = 963,084,258,284,959,744
  5. Step 5: Solve for x
    x = 963,084,258,284,959,744/1,087,554,067.11
  6. Step 6: Final answer
    x = 885,550,693.44

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Double scale
Find fourth proportional to 1,087,554,068.11, 1,501,004,607.15 and 641,626,452.10
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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.