Home / 345,913,710.10-477,371,627.49-189,287,418.58

Finding the Fourth Proportional to 345,913,710.10, 477,371,627.49 and 189,287,418.58

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Solution

The fourth proportional to 345,913,710.10, 477,371,627.49 and 189,287,418.58 is: 261,222,496.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,913,710.10 : 477,371,627.49 = 189,287,418.58 : x
  2. Step 2: Convert to fraction form
    345,913,710.10/477,371,627.49 = 189,287,418.58/x
  3. Step 3: Cross multiply
    345,913,710.10x = 477,371,627.49 × 189,287,418.58
  4. Step 4: Simplify right side
    345,913,710.10x = 90,360,443,070,915,472
  5. Step 5: Solve for x
    x = 90,360,443,070,915,472/345,913,710.10
  6. Step 6: Final answer
    x = 261,222,496.92

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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.