Home / 478,797,586.76-660,740,371.28-258,781,012.76

Finding the Fourth Proportional to 478,797,586.76, 660,740,371.28 and 258,781,012.76

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Solution

The fourth proportional to 478,797,586.76, 660,740,371.28 and 258,781,012.76 is: 357,117,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,797,586.76 : 660,740,371.28 = 258,781,012.76 : x
  2. Step 2: Convert to fraction form
    478,797,586.76/660,740,371.28 = 258,781,012.76/x
  3. Step 3: Cross multiply
    478,797,586.76x = 660,740,371.28 × 258,781,012.76
  4. Step 4: Simplify right side
    478,797,586.76x = 170,987,062,446,659,200
  5. Step 5: Solve for x
    x = 170,987,062,446,659,200/478,797,586.76
  6. Step 6: Final answer
    x = 357,117,636.30

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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.