Home / 909,609,300.38-1,255,264,593.86-491,921,577.02

Finding the Fourth Proportional to 909,609,300.38, 1,255,264,593.86 and 491,921,577.02

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Solution

The fourth proportional to 909,609,300.38, 1,255,264,593.86 and 491,921,577.02 is: 678,853,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,609,300.38 : 1,255,264,593.86 = 491,921,577.02 : x
  2. Step 2: Convert to fraction form
    909,609,300.38/1,255,264,593.86 = 491,921,577.02/x
  3. Step 3: Cross multiply
    909,609,300.38x = 1,255,264,593.86 × 491,921,577.02
  4. Step 4: Simplify right side
    909,609,300.38x = 617,491,738,588,980,992
  5. Step 5: Solve for x
    x = 617,491,738,588,980,992/909,609,300.38
  6. Step 6: Final answer
    x = 678,853,809.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.