Home / 787,339,206.40-1,181,008,809.60-424,542,150.40

Finding the Fourth Proportional to 787,339,206.40, 1,181,008,809.60 and 424,542,150.40

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Solution

The fourth proportional to 787,339,206.40, 1,181,008,809.60 and 424,542,150.40 is: 636,813,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,339,206.40 : 1,181,008,809.60 = 424,542,150.40 : x
  2. Step 2: Convert to fraction form
    787,339,206.40/1,181,008,809.60 = 424,542,150.40/x
  3. Step 3: Cross multiply
    787,339,206.40x = 1,181,008,809.60 × 424,542,150.40
  4. Step 4: Simplify right side
    787,339,206.40x = 501,388,019,668,928,064
  5. Step 5: Solve for x
    x = 501,388,019,668,928,064/787,339,206.40
  6. Step 6: Final answer
    x = 636,813,225.60

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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.