Home / 219,936,678.40-329,821,036.80-66,531,750.40

Finding the Fourth Proportional to 219,936,678.40, 329,821,036.80 and 66,531,750.40

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Solution

The fourth proportional to 219,936,678.40, 329,821,036.80 and 66,531,750.40 is: 99,772,221.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,936,678.40 : 329,821,036.80 = 66,531,750.40 : x
  2. Step 2: Convert to fraction form
    219,936,678.40/329,821,036.80 = 66,531,750.40/x
  3. Step 3: Cross multiply
    219,936,678.40x = 329,821,036.80 × 66,531,750.40
  4. Step 4: Simplify right side
    219,936,678.40x = 21,943,570,897,046,816
  5. Step 5: Solve for x
    x = 21,943,570,897,046,816/219,936,678.40
  6. Step 6: Final answer
    x = 99,772,221.06

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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.