Home / 772,907,339.30-1,066,587,826.29-420,474,301.34

Finding the Fourth Proportional to 772,907,339.30, 1,066,587,826.29 and 420,474,301.34

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Solution

The fourth proportional to 772,907,339.30, 1,066,587,826.29 and 420,474,301.34 is: 580,241,315.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,907,339.30 : 1,066,587,826.29 = 420,474,301.34 : x
  2. Step 2: Convert to fraction form
    772,907,339.30/1,066,587,826.29 = 420,474,301.34/x
  3. Step 3: Cross multiply
    772,907,339.30x = 1,066,587,826.29 × 420,474,301.34
  4. Step 4: Simplify right side
    772,907,339.30x = 448,472,771,077,036,992
  5. Step 5: Solve for x
    x = 448,472,771,077,036,992/772,907,339.30
  6. Step 6: Final answer
    x = 580,241,315.19

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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.