Home / 1,281,335,719.50-1,921,809,381.36-348,731,241.42

Finding the Fourth Proportional to 1,281,335,719.50, 1,921,809,381.36 and 348,731,241.42

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Solution

The fourth proportional to 1,281,335,719.50, 1,921,809,381.36 and 348,731,241.42 is: 523,044,008.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,335,719.50 : 1,921,809,381.36 = 348,731,241.42 : x
  2. Step 2: Convert to fraction form
    1,281,335,719.50/1,921,809,381.36 = 348,731,241.42/x
  3. Step 3: Cross multiply
    1,281,335,719.50x = 1,921,809,381.36 × 348,731,241.42
  4. Step 4: Simplify right side
    1,281,335,719.50x = 670,194,971,334,274,944
  5. Step 5: Solve for x
    x = 670,194,971,334,274,944/1,281,335,719.50
  6. Step 6: Final answer
    x = 523,044,008.79

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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.