Home / 155,830,955.44-215,053,048.56-86,215,202.50

Finding the Fourth Proportional to 155,830,955.44, 215,053,048.56 and 86,215,202.50

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Solution

The fourth proportional to 155,830,955.44, 215,053,048.56 and 86,215,202.50 is: 118,980,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,830,955.44 : 215,053,048.56 = 86,215,202.50 : x
  2. Step 2: Convert to fraction form
    155,830,955.44/215,053,048.56 = 86,215,202.50/x
  3. Step 3: Cross multiply
    155,830,955.44x = 215,053,048.56 × 86,215,202.50
  4. Step 4: Simplify right side
    155,830,955.44x = 18,540,842,129,842,732
  5. Step 5: Solve for x
    x = 18,540,842,129,842,732/155,830,955.44
  6. Step 6: Final answer
    x = 118,980,481.62

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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.