Home / 147,622,681.80-221,434,022.70-86,148,736.20

Finding the Fourth Proportional to 147,622,681.80, 221,434,022.70 and 86,148,736.20

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Solution

The fourth proportional to 147,622,681.80, 221,434,022.70 and 86,148,736.20 is: 129,223,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,622,681.80 : 221,434,022.70 = 86,148,736.20 : x
  2. Step 2: Convert to fraction form
    147,622,681.80/221,434,022.70 = 86,148,736.20/x
  3. Step 3: Cross multiply
    147,622,681.80x = 221,434,022.70 × 86,148,736.20
  4. Step 4: Simplify right side
    147,622,681.80x = 19,076,261,207,287,112
  5. Step 5: Solve for x
    x = 19,076,261,207,287,112/147,622,681.80
  6. Step 6: Final answer
    x = 129,223,104.30

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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.