Home / 708,144,285.78-976,846,805.10-496,765,828.62

Finding the Fourth Proportional to 708,144,285.78, 976,846,805.10 and 496,765,828.62

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Solution

The fourth proportional to 708,144,285.78, 976,846,805.10 and 496,765,828.62 is: 685,261,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,144,285.78 : 976,846,805.10 = 496,765,828.62 : x
  2. Step 2: Convert to fraction form
    708,144,285.78/976,846,805.10 = 496,765,828.62/x
  3. Step 3: Cross multiply
    708,144,285.78x = 976,846,805.10 × 496,765,828.62
  4. Step 4: Simplify right side
    708,144,285.78x = 485,264,112,570,301,184
  5. Step 5: Solve for x
    x = 485,264,112,570,301,184/708,144,285.78
  6. Step 6: Final answer
    x = 685,261,637.09

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Double scale
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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.