Home / 1,265,317,659.06-1,897,609,959.69-379,967,289.48

Finding the Fourth Proportional to 1,265,317,659.06, 1,897,609,959.69 and 379,967,289.48

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Solution

The fourth proportional to 1,265,317,659.06, 1,897,609,959.69 and 379,967,289.48 is: 569,840,867.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,317,659.06 : 1,897,609,959.69 = 379,967,289.48 : x
  2. Step 2: Convert to fraction form
    1,265,317,659.06/1,897,609,959.69 = 379,967,289.48/x
  3. Step 3: Cross multiply
    1,265,317,659.06x = 1,897,609,959.69 × 379,967,289.48
  4. Step 4: Simplify right side
    1,265,317,659.06x = 721,029,712,872,217,472
  5. Step 5: Solve for x
    x = 721,029,712,872,217,472/1,265,317,659.06
  6. Step 6: Final answer
    x = 569,840,867.79

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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.