Home / 21,521,880.20-32,282,820.30-7,875,000.20

Finding the Fourth Proportional to 21,521,880.20, 32,282,820.30 and 7,875,000.20

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Solution

The fourth proportional to 21,521,880.20, 32,282,820.30 and 7,875,000.20 is: 11,812,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,521,880.20 : 32,282,820.30 = 7,875,000.20 : x
  2. Step 2: Convert to fraction form
    21,521,880.20/32,282,820.30 = 7,875,000.20/x
  3. Step 3: Cross multiply
    21,521,880.20x = 32,282,820.30 × 7,875,000.20
  4. Step 4: Simplify right side
    21,521,880.20x = 254,227,216,319,064.06
  5. Step 5: Solve for x
    x = 254,227,216,319,064.06/21,521,880.20
  6. Step 6: Final answer
    x = 11,812,500.30

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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.