Home / 508,464,010.20-762,696,015.30-386,020,003.80

Finding the Fourth Proportional to 508,464,010.20, 762,696,015.30 and 386,020,003.80

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Solution

The fourth proportional to 508,464,010.20, 762,696,015.30 and 386,020,003.80 is: 579,030,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,464,010.20 : 762,696,015.30 = 386,020,003.80 : x
  2. Step 2: Convert to fraction form
    508,464,010.20/762,696,015.30 = 386,020,003.80/x
  3. Step 3: Cross multiply
    508,464,010.20x = 762,696,015.30 × 386,020,003.80
  4. Step 4: Simplify right side
    508,464,010.20x = 294,415,918,724,350,848
  5. Step 5: Solve for x
    x = 294,415,918,724,350,848/508,464,010.20
  6. Step 6: Final answer
    x = 579,030,005.70

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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.