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Finding the Fourth Proportional to 479,495,087.90, 661,703,196.03 and 259,478,513.90

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Solution

The fourth proportional to 479,495,087.90, 661,703,196.03 and 259,478,513.90 is: 358,080,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,495,087.90 : 661,703,196.03 = 259,478,513.90 : x
  2. Step 2: Convert to fraction form
    479,495,087.90/661,703,196.03 = 259,478,513.90/x
  3. Step 3: Cross multiply
    479,495,087.90x = 661,703,196.03 × 259,478,513.90
  4. Step 4: Simplify right side
    479,495,087.90x = 171,697,761,948,744,768
  5. Step 5: Solve for x
    x = 171,697,761,948,744,768/479,495,087.90
  6. Step 6: Final answer
    x = 358,080,335.51

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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.