Home / 401,278,567.70-553,766,384.88-225,075,979.91

Finding the Fourth Proportional to 401,278,567.70, 553,766,384.88 and 225,075,979.91

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Solution

The fourth proportional to 401,278,567.70, 553,766,384.88 and 225,075,979.91 is: 310,605,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,278,567.70 : 553,766,384.88 = 225,075,979.91 : x
  2. Step 2: Convert to fraction form
    401,278,567.70/553,766,384.88 = 225,075,979.91/x
  3. Step 3: Cross multiply
    401,278,567.70x = 553,766,384.88 × 225,075,979.91
  4. Step 4: Simplify right side
    401,278,567.70x = 124,639,511,715,315,376
  5. Step 5: Solve for x
    x = 124,639,511,715,315,376/401,278,567.70
  6. Step 6: Final answer
    x = 310,605,952.45

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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.