Home / 206,648,016.51-309,972,451.23-194,020,978.35

Finding the Fourth Proportional to 206,648,016.51, 309,972,451.23 and 194,020,978.35

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Solution

The fourth proportional to 206,648,016.51, 309,972,451.23 and 194,020,978.35 is: 291,031,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,648,016.51 : 309,972,451.23 = 194,020,978.35 : x
  2. Step 2: Convert to fraction form
    206,648,016.51/309,972,451.23 = 194,020,978.35/x
  3. Step 3: Cross multiply
    206,648,016.51x = 309,972,451.23 × 194,020,978.35
  4. Step 4: Simplify right side
    206,648,016.51x = 60,141,158,249,192,264
  5. Step 5: Solve for x
    x = 60,141,158,249,192,264/206,648,016.51
  6. Step 6: Final answer
    x = 291,031,867.93

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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.