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Finding the Fourth Proportional to 5,265,068, 7,897,602 and 1,275,980

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Solution

The fourth proportional to 5,265,068, 7,897,602 and 1,275,980 is: 1,913,970

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265,068 : 7,897,602 = 1,275,980 : x
  2. Step 2: Convert to fraction form
    5,265,068/7,897,602 = 1,275,980/x
  3. Step 3: Cross multiply
    5,265,068x = 7,897,602 × 1,275,980
  4. Step 4: Simplify right side
    5,265,068x = 10,077,182,199,960
  5. Step 5: Solve for x
    x = 10,077,182,199,960/5,265,068
  6. Step 6: Final answer
    x = 1,913,970

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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.