Home / 891,319,755.54-1,230,025,719.27-556,986,417.06

Finding the Fourth Proportional to 891,319,755.54, 1,230,025,719.27 and 556,986,417.06

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Solution

The fourth proportional to 891,319,755.54, 1,230,025,719.27 and 556,986,417.06 is: 768,644,040.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,319,755.54 : 1,230,025,719.27 = 556,986,417.06 : x
  2. Step 2: Convert to fraction form
    891,319,755.54/1,230,025,719.27 = 556,986,417.06/x
  3. Step 3: Cross multiply
    891,319,755.54x = 1,230,025,719.27 × 556,986,417.06
  4. Step 4: Simplify right side
    891,319,755.54x = 685,107,618,267,846,656
  5. Step 5: Solve for x
    x = 685,107,618,267,846,656/891,319,755.54
  6. Step 6: Final answer
    x = 768,644,040.49

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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.