Home / 448,460,870.40-672,691,305.60-206,596,166.40

Finding the Fourth Proportional to 448,460,870.40, 672,691,305.60 and 206,596,166.40

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Solution

The fourth proportional to 448,460,870.40, 672,691,305.60 and 206,596,166.40 is: 309,894,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,460,870.40 : 672,691,305.60 = 206,596,166.40 : x
  2. Step 2: Convert to fraction form
    448,460,870.40/672,691,305.60 = 206,596,166.40/x
  3. Step 3: Cross multiply
    448,460,870.40x = 672,691,305.60 × 206,596,166.40
  4. Step 4: Simplify right side
    448,460,870.40x = 138,975,444,907,570,864
  5. Step 5: Solve for x
    x = 138,975,444,907,570,864/448,460,870.40
  6. Step 6: Final answer
    x = 309,894,249.60

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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.