Home / 620,652,302.16-931,074,112.56-211,612,793.28

Finding the Fourth Proportional to 620,652,302.16, 931,074,112.56 and 211,612,793.28

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Solution

The fourth proportional to 620,652,302.16, 931,074,112.56 and 211,612,793.28 is: 317,451,805.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,652,302.16 : 931,074,112.56 = 211,612,793.28 : x
  2. Step 2: Convert to fraction form
    620,652,302.16/931,074,112.56 = 211,612,793.28/x
  3. Step 3: Cross multiply
    620,652,302.16x = 931,074,112.56 × 211,612,793.28
  4. Step 4: Simplify right side
    620,652,302.16x = 197,027,193,709,518,720
  5. Step 5: Solve for x
    x = 197,027,193,709,518,720/620,652,302.16
  6. Step 6: Final answer
    x = 317,451,805.18

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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.