Home / 899,892,343.90-1,241,853,257.54-503,421,954.39

Finding the Fourth Proportional to 899,892,343.90, 1,241,853,257.54 and 503,421,954.39

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Solution

The fourth proportional to 899,892,343.90, 1,241,853,257.54 and 503,421,954.39 is: 694,723,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,892,343.90 : 1,241,853,257.54 = 503,421,954.39 : x
  2. Step 2: Convert to fraction form
    899,892,343.90/1,241,853,257.54 = 503,421,954.39/x
  3. Step 3: Cross multiply
    899,892,343.90x = 1,241,853,257.54 × 503,421,954.39
  4. Step 4: Simplify right side
    899,892,343.90x = 625,176,193,976,374,784
  5. Step 5: Solve for x
    x = 625,176,193,976,374,784/899,892,343.90
  6. Step 6: Final answer
    x = 694,723,316.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.