Home / 911,703,462.49-1,367,691,398.48-289,938,978.55

Finding the Fourth Proportional to 911,703,462.49, 1,367,691,398.48 and 289,938,978.55

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Solution

The fourth proportional to 911,703,462.49, 1,367,691,398.48 and 289,938,978.55 is: 434,951,783.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,703,462.49 : 1,367,691,398.48 = 289,938,978.55 : x
  2. Step 2: Convert to fraction form
    911,703,462.49/1,367,691,398.48 = 289,938,978.55/x
  3. Step 3: Cross multiply
    911,703,462.49x = 1,367,691,398.48 × 289,938,978.55
  4. Step 4: Simplify right side
    911,703,462.49x = 396,547,047,046,912,256
  5. Step 5: Solve for x
    x = 396,547,047,046,912,256/911,703,462.49
  6. Step 6: Final answer
    x = 434,951,783.52

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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.