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Finding the Fourth Proportional to 343,872,603.70, 515,808,905.55 and 235,033,486.90

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Solution

The fourth proportional to 343,872,603.70, 515,808,905.55 and 235,033,486.90 is: 352,550,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,872,603.70 : 515,808,905.55 = 235,033,486.90 : x
  2. Step 2: Convert to fraction form
    343,872,603.70/515,808,905.55 = 235,033,486.90/x
  3. Step 3: Cross multiply
    343,872,603.70x = 515,808,905.55 × 235,033,486.90
  4. Step 4: Simplify right side
    343,872,603.70x = 121,232,365,645,489,264
  5. Step 5: Solve for x
    x = 121,232,365,645,489,264/343,872,603.70
  6. Step 6: Final answer
    x = 352,550,230.35

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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.