Home / 300,127,140.96-414,218,952.68-172,943,075.52

Finding the Fourth Proportional to 300,127,140.96, 414,218,952.68 and 172,943,075.52

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Solution

The fourth proportional to 300,127,140.96, 414,218,952.68 and 172,943,075.52 is: 238,686,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,127,140.96 : 414,218,952.68 = 172,943,075.52 : x
  2. Step 2: Convert to fraction form
    300,127,140.96/414,218,952.68 = 172,943,075.52/x
  3. Step 3: Cross multiply
    300,127,140.96x = 414,218,952.68 × 172,943,075.52
  4. Step 4: Simplify right side
    300,127,140.96x = 71,636,299,614,287,840
  5. Step 5: Solve for x
    x = 71,636,299,614,287,840/300,127,140.96
  6. Step 6: Final answer
    x = 238,686,509.27

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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.