Home / 786,816,058.40-1,180,213,028.40-355,993,863.20

Finding the Fourth Proportional to 786,816,058.40, 1,180,213,028.40 and 355,993,863.20

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Solution

The fourth proportional to 786,816,058.40, 1,180,213,028.40 and 355,993,863.20 is: 533,985,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,816,058.40 : 1,180,213,028.40 = 355,993,863.20 : x
  2. Step 2: Convert to fraction form
    786,816,058.40/1,180,213,028.40 = 355,993,863.20/x
  3. Step 3: Cross multiply
    786,816,058.40x = 1,180,213,028.40 × 355,993,863.20
  4. Step 4: Simplify right side
    786,816,058.40x = 420,148,595,379,087,360
  5. Step 5: Solve for x
    x = 420,148,595,379,087,360/786,816,058.40
  6. Step 6: Final answer
    x = 533,985,791.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.