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Finding the Fourth Proportional to 555,254,148.25, 765,803,934.27 and 488,129,584.33

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Solution

The fourth proportional to 555,254,148.25, 765,803,934.27 and 488,129,584.33 is: 673,226,048.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,254,148.25 : 765,803,934.27 = 488,129,584.33 : x
  2. Step 2: Convert to fraction form
    555,254,148.25/765,803,934.27 = 488,129,584.33/x
  3. Step 3: Cross multiply
    555,254,148.25x = 765,803,934.27 × 488,129,584.33
  4. Step 4: Simplify right side
    555,254,148.25x = 373,811,556,113,493,696
  5. Step 5: Solve for x
    x = 373,811,556,113,493,696/555,254,148.25
  6. Step 6: Final answer
    x = 673,226,048.45

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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.