Home / 429,751,140.10-643,670,116.35-372,355,512.10

Finding the Fourth Proportional to 429,751,140.10, 643,670,116.35 and 372,355,512.10

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Solution

The fourth proportional to 429,751,140.10, 643,670,116.35 and 372,355,512.10 is: 557,704,432.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,751,140.10 : 643,670,116.35 = 372,355,512.10 : x
  2. Step 2: Convert to fraction form
    429,751,140.10/643,670,116.35 = 372,355,512.10/x
  3. Step 3: Cross multiply
    429,751,140.10x = 643,670,116.35 × 372,355,512.10
  4. Step 4: Simplify right side
    429,751,140.10x = 239,674,115,796,970,848
  5. Step 5: Solve for x
    x = 239,674,115,796,970,848/429,751,140.10
  6. Step 6: Final answer
    x = 557,704,432.71

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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.