Home / 15,645,611.20-23,468,416.80-13,260,031.60

Finding the Fourth Proportional to 15,645,611.20, 23,468,416.80 and 13,260,031.60

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Solution

The fourth proportional to 15,645,611.20, 23,468,416.80 and 13,260,031.60 is: 19,890,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645,611.20 : 23,468,416.80 = 13,260,031.60 : x
  2. Step 2: Convert to fraction form
    15,645,611.20/23,468,416.80 = 13,260,031.60/x
  3. Step 3: Cross multiply
    15,645,611.20x = 23,468,416.80 × 13,260,031.60
  4. Step 4: Simplify right side
    15,645,611.20x = 311,191,948,369,970.88
  5. Step 5: Solve for x
    x = 311,191,948,369,970.88/15,645,611.20
  6. Step 6: Final answer
    x = 19,890,047.40

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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.