Home / 386,207,889.60-579,983,680.80-204,809,361.60

Finding the Fourth Proportional to 386,207,889.60, 579,983,680.80 and 204,809,361.60

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Solution

The fourth proportional to 386,207,889.60, 579,983,680.80 and 204,809,361.60 is: 307,570,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,207,889.60 : 579,983,680.80 = 204,809,361.60 : x
  2. Step 2: Convert to fraction form
    386,207,889.60/579,983,680.80 = 204,809,361.60/x
  3. Step 3: Cross multiply
    386,207,889.60x = 579,983,680.80 × 204,809,361.60
  4. Step 4: Simplify right side
    386,207,889.60x = 118,786,087,403,066,160
  5. Step 5: Solve for x
    x = 118,786,087,403,066,160/386,207,889.60
  6. Step 6: Final answer
    x = 307,570,328.32

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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.