Home / 20,020,803.40-30,031,205.10-6,558,992.20

Finding the Fourth Proportional to 20,020,803.40, 30,031,205.10 and 6,558,992.20

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Solution

The fourth proportional to 20,020,803.40, 30,031,205.10 and 6,558,992.20 is: 9,838,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020,803.40 : 30,031,205.10 = 6,558,992.20 : x
  2. Step 2: Convert to fraction form
    20,020,803.40/30,031,205.10 = 6,558,992.20/x
  3. Step 3: Cross multiply
    20,020,803.40x = 30,031,205.10 × 6,558,992.20
  4. Step 4: Simplify right side
    20,020,803.40x = 196,974,440,007,500.25
  5. Step 5: Solve for x
    x = 196,974,440,007,500.25/20,020,803.40
  6. Step 6: Final answer
    x = 9,838,488.30

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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.