Home / 279,937,109.60-419,905,664.40-192,261,154.40

Finding the Fourth Proportional to 279,937,109.60, 419,905,664.40 and 192,261,154.40

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Solution

The fourth proportional to 279,937,109.60, 419,905,664.40 and 192,261,154.40 is: 288,391,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,109.60 : 419,905,664.40 = 192,261,154.40 : x
  2. Step 2: Convert to fraction form
    279,937,109.60/419,905,664.40 = 192,261,154.40/x
  3. Step 3: Cross multiply
    279,937,109.60x = 419,905,664.40 × 192,261,154.40
  4. Step 4: Simplify right side
    279,937,109.60x = 80,731,547,776,642,976
  5. Step 5: Solve for x
    x = 80,731,547,776,642,976/279,937,109.60
  6. Step 6: Final answer
    x = 288,391,731.60

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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.