Home / 343,854,257.60-515,781,386.40-306,230,859.20

Finding the Fourth Proportional to 343,854,257.60, 515,781,386.40 and 306,230,859.20

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Solution

The fourth proportional to 343,854,257.60, 515,781,386.40 and 306,230,859.20 is: 459,346,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,854,257.60 : 515,781,386.40 = 306,230,859.20 : x
  2. Step 2: Convert to fraction form
    343,854,257.60/515,781,386.40 = 306,230,859.20/x
  3. Step 3: Cross multiply
    343,854,257.60x = 515,781,386.40 × 306,230,859.20
  4. Step 4: Simplify right side
    343,854,257.60x = 157,948,177,116,639,168
  5. Step 5: Solve for x
    x = 157,948,177,116,639,168/343,854,257.60
  6. Step 6: Final answer
    x = 459,346,288.80

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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.