Home / 209,953,510.80-314,930,266.20-206,552,288.40

Finding the Fourth Proportional to 209,953,510.80, 314,930,266.20 and 206,552,288.40

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Solution

The fourth proportional to 209,953,510.80, 314,930,266.20 and 206,552,288.40 is: 309,828,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,510.80 : 314,930,266.20 = 206,552,288.40 : x
  2. Step 2: Convert to fraction form
    209,953,510.80/314,930,266.20 = 206,552,288.40/x
  3. Step 3: Cross multiply
    209,953,510.80x = 314,930,266.20 × 206,552,288.40
  4. Step 4: Simplify right side
    209,953,510.80x = 65,049,567,170,031,168
  5. Step 5: Solve for x
    x = 65,049,567,170,031,168/209,953,510.80
  6. Step 6: Final answer
    x = 309,828,432.60

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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.