Home / 7,152,021.20-10,728,031.80-2,663,368.40

Finding the Fourth Proportional to 7,152,021.20, 10,728,031.80 and 2,663,368.40

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Solution

The fourth proportional to 7,152,021.20, 10,728,031.80 and 2,663,368.40 is: 3,995,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152,021.20 : 10,728,031.80 = 2,663,368.40 : x
  2. Step 2: Convert to fraction form
    7,152,021.20/10,728,031.80 = 2,663,368.40/x
  3. Step 3: Cross multiply
    7,152,021.20x = 10,728,031.80 × 2,663,368.40
  4. Step 4: Simplify right side
    7,152,021.20x = 28,572,700,890,315.12
  5. Step 5: Solve for x
    x = 28,572,700,890,315.12/7,152,021.20
  6. Step 6: Final answer
    x = 3,995,052.60

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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.