Home / 8,742,511.20-13,113,766.80-8,448,578.40

Finding the Fourth Proportional to 8,742,511.20, 13,113,766.80 and 8,448,578.40

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Solution

The fourth proportional to 8,742,511.20, 13,113,766.80 and 8,448,578.40 is: 12,672,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742,511.20 : 13,113,766.80 = 8,448,578.40 : x
  2. Step 2: Convert to fraction form
    8,742,511.20/13,113,766.80 = 8,448,578.40/x
  3. Step 3: Cross multiply
    8,742,511.20x = 13,113,766.80 × 8,448,578.40
  4. Step 4: Simplify right side
    8,742,511.20x = 110,792,686,929,117.12
  5. Step 5: Solve for x
    x = 110,792,686,929,117.12/8,742,511.20
  6. Step 6: Final answer
    x = 12,672,867.60

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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.