Home / 448,056,005.40-672,084,008.10-400,438,891.80

Finding the Fourth Proportional to 448,056,005.40, 672,084,008.10 and 400,438,891.80

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Solution

The fourth proportional to 448,056,005.40, 672,084,008.10 and 400,438,891.80 is: 600,658,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,056,005.40 : 672,084,008.10 = 400,438,891.80 : x
  2. Step 2: Convert to fraction form
    448,056,005.40/672,084,008.10 = 400,438,891.80/x
  3. Step 3: Cross multiply
    448,056,005.40x = 672,084,008.10 × 400,438,891.80
  4. Step 4: Simplify right side
    448,056,005.40x = 269,128,575,400,066,240
  5. Step 5: Solve for x
    x = 269,128,575,400,066,240/448,056,005.40
  6. Step 6: Final answer
    x = 600,658,337.70

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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.