Home / 448,439,216.40-672,658,824.60-206,574,512.40

Finding the Fourth Proportional to 448,439,216.40, 672,658,824.60 and 206,574,512.40

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Solution

The fourth proportional to 448,439,216.40, 672,658,824.60 and 206,574,512.40 is: 309,861,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,439,216.40 : 672,658,824.60 = 206,574,512.40 : x
  2. Step 2: Convert to fraction form
    448,439,216.40/672,658,824.60 = 206,574,512.40/x
  3. Step 3: Cross multiply
    448,439,216.40x = 672,658,824.60 × 206,574,512.40
  4. Step 4: Simplify right side
    448,439,216.40x = 138,954,168,703,302,128
  5. Step 5: Solve for x
    x = 138,954,168,703,302,128/448,439,216.40
  6. Step 6: Final answer
    x = 309,861,768.60

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1.5x scale

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.