Home / 651,259,138.40-976,590,109.20-287,566,287.20

Finding the Fourth Proportional to 651,259,138.40, 976,590,109.20 and 287,566,287.20

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Solution

The fourth proportional to 651,259,138.40, 976,590,109.20 and 287,566,287.20 is: 431,217,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,259,138.40 : 976,590,109.20 = 287,566,287.20 : x
  2. Step 2: Convert to fraction form
    651,259,138.40/976,590,109.20 = 287,566,287.20/x
  3. Step 3: Cross multiply
    651,259,138.40x = 976,590,109.20 × 287,566,287.20
  4. Step 4: Simplify right side
    651,259,138.40x = 280,834,391,818,886,560
  5. Step 5: Solve for x
    x = 280,834,391,818,886,560/651,259,138.40
  6. Step 6: Final answer
    x = 431,217,583.39

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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.