Home / 448,458,975.15-672,688,462.73-206,594,271.15

Finding the Fourth Proportional to 448,458,975.15, 672,688,462.73 and 206,594,271.15

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Solution

The fourth proportional to 448,458,975.15, 672,688,462.73 and 206,594,271.15 is: 309,891,406.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,458,975.15 : 672,688,462.73 = 206,594,271.15 : x
  2. Step 2: Convert to fraction form
    448,458,975.15/672,688,462.73 = 206,594,271.15/x
  3. Step 3: Cross multiply
    448,458,975.15x = 672,688,462.73 × 206,594,271.15
  4. Step 4: Simplify right side
    448,458,975.15x = 138,973,582,667,685,328
  5. Step 5: Solve for x
    x = 138,973,582,667,685,328/448,458,975.15
  6. Step 6: Final answer
    x = 309,891,406.73

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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.