Home / 620,063,837.60-929,432,204.40-210,740,727.20

Finding the Fourth Proportional to 620,063,837.60, 929,432,204.40 and 210,740,727.20

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Solution

The fourth proportional to 620,063,837.60, 929,432,204.40 and 210,740,727.20 is: 315,885,569.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,063,837.60 : 929,432,204.40 = 210,740,727.20 : x
  2. Step 2: Convert to fraction form
    620,063,837.60/929,432,204.40 = 210,740,727.20/x
  3. Step 3: Cross multiply
    620,063,837.60x = 929,432,204.40 × 210,740,727.20
  4. Step 4: Simplify right side
    620,063,837.60x = 195,869,218,638,355,008
  5. Step 5: Solve for x
    x = 195,869,218,638,355,008/620,063,837.60
  6. Step 6: Final answer
    x = 315,885,569.78

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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.