Home / 620,592,654.40-930,888,981.60-211,662,145.60

Finding the Fourth Proportional to 620,592,654.40, 930,888,981.60 and 211,662,145.60

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Solution

The fourth proportional to 620,592,654.40, 930,888,981.60 and 211,662,145.60 is: 317,493,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,592,654.40 : 930,888,981.60 = 211,662,145.60 : x
  2. Step 2: Convert to fraction form
    620,592,654.40/930,888,981.60 = 211,662,145.60/x
  3. Step 3: Cross multiply
    620,592,654.40x = 930,888,981.60 × 211,662,145.60
  4. Step 4: Simplify right side
    620,592,654.40x = 197,033,959,160,854,912
  5. Step 5: Solve for x
    x = 197,033,959,160,854,912/620,592,654.40
  6. Step 6: Final answer
    x = 317,493,218.40

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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.