Home / 787,339,672.40-1,181,009,508.60-424,542,616.40

Finding the Fourth Proportional to 787,339,672.40, 1,181,009,508.60 and 424,542,616.40

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Solution

The fourth proportional to 787,339,672.40, 1,181,009,508.60 and 424,542,616.40 is: 636,813,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,339,672.40 : 1,181,009,508.60 = 424,542,616.40 : x
  2. Step 2: Convert to fraction form
    787,339,672.40/1,181,009,508.60 = 424,542,616.40/x
  3. Step 3: Cross multiply
    787,339,672.40x = 1,181,009,508.60 × 424,542,616.40
  4. Step 4: Simplify right side
    787,339,672.40x = 501,388,866,774,322,240
  5. Step 5: Solve for x
    x = 501,388,866,774,322,240/787,339,672.40
  6. Step 6: Final answer
    x = 636,813,924.60

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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.