Home / 448,479,975.15-672,719,962.73-206,615,271.15

Finding the Fourth Proportional to 448,479,975.15, 672,719,962.73 and 206,615,271.15

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Solution

The fourth proportional to 448,479,975.15, 672,719,962.73 and 206,615,271.15 is: 309,922,906.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,479,975.15 : 672,719,962.73 = 206,615,271.15 : x
  2. Step 2: Convert to fraction form
    448,479,975.15/672,719,962.73 = 206,615,271.15/x
  3. Step 3: Cross multiply
    448,479,975.15x = 672,719,962.73 × 206,615,271.15
  4. Step 4: Simplify right side
    448,479,975.15x = 138,994,217,506,443,776
  5. Step 5: Solve for x
    x = 138,994,217,506,443,776/448,479,975.15
  6. Step 6: Final answer
    x = 309,922,906.73

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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.