Home / 13,113,743.20-19,683,056.40-8,074,895.20

Finding the Fourth Proportional to 13,113,743.20, 19,683,056.40 and 8,074,895.20

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Solution

The fourth proportional to 13,113,743.20, 19,683,056.40 and 8,074,895.20 is: 12,120,003.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113,743.20 : 19,683,056.40 = 8,074,895.20 : x
  2. Step 2: Convert to fraction form
    13,113,743.20/19,683,056.40 = 8,074,895.20/x
  3. Step 3: Cross multiply
    13,113,743.20x = 19,683,056.40 × 8,074,895.20
  4. Step 4: Simplify right side
    13,113,743.20x = 158,938,617,645,689.28
  5. Step 5: Solve for x
    x = 158,938,617,645,689.28/13,113,743.20
  6. Step 6: Final answer
    x = 12,120,003.82

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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.