Home / 1,188,525,862.48-1,640,216,916.16-659,889,874.51

Finding the Fourth Proportional to 1,188,525,862.48, 1,640,216,916.16 and 659,889,874.51

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Solution

The fourth proportional to 1,188,525,862.48, 1,640,216,916.16 and 659,889,874.51 is: 910,676,468.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,525,862.48 : 1,640,216,916.16 = 659,889,874.51 : x
  2. Step 2: Convert to fraction form
    1,188,525,862.48/1,640,216,916.16 = 659,889,874.51/x
  3. Step 3: Cross multiply
    1,188,525,862.48x = 1,640,216,916.16 × 659,889,874.51
  4. Step 4: Simplify right side
    1,188,525,862.48x = 1,082,362,534,975,206,272
  5. Step 5: Solve for x
    x = 1,082,362,534,975,206,272/1,188,525,862.48
  6. Step 6: Final answer
    x = 910,676,468.34

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Double scale
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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.