Home / 13,142,352.80-19,713,529.20-8,607,389.60

Finding the Fourth Proportional to 13,142,352.80, 19,713,529.20 and 8,607,389.60

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Solution

The fourth proportional to 13,142,352.80, 19,713,529.20 and 8,607,389.60 is: 12,911,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,142,352.80 : 19,713,529.20 = 8,607,389.60 : x
  2. Step 2: Convert to fraction form
    13,142,352.80/19,713,529.20 = 8,607,389.60/x
  3. Step 3: Cross multiply
    13,142,352.80x = 19,713,529.20 × 8,607,389.60
  4. Step 4: Simplify right side
    13,142,352.80x = 169,682,026,215,376.31
  5. Step 5: Solve for x
    x = 169,682,026,215,376.31/13,142,352.80
  6. Step 6: Final answer
    x = 12,911,084.40

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Similar ratio
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1.5x scale

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.