Home / 448,458,969.90-672,688,454.85-206,594,265.90

Finding the Fourth Proportional to 448,458,969.90, 672,688,454.85 and 206,594,265.90

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Solution

The fourth proportional to 448,458,969.90, 672,688,454.85 and 206,594,265.90 is: 309,891,398.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,458,969.90 : 672,688,454.85 = 206,594,265.90 : x
  2. Step 2: Convert to fraction form
    448,458,969.90/672,688,454.85 = 206,594,265.90/x
  3. Step 3: Cross multiply
    448,458,969.90x = 672,688,454.85 × 206,594,265.90
  4. Step 4: Simplify right side
    448,458,969.90x = 138,973,577,509,141,056
  5. Step 5: Solve for x
    x = 138,973,577,509,141,056/448,458,969.90
  6. Step 6: Final answer
    x = 309,891,398.85

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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.