Home / 399,242,075.65-550,975,217.51-240,522,162.89

Finding the Fourth Proportional to 399,242,075.65, 550,975,217.51 and 240,522,162.89

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Solution

The fourth proportional to 399,242,075.65, 550,975,217.51 and 240,522,162.89 is: 331,933,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,242,075.65 : 550,975,217.51 = 240,522,162.89 : x
  2. Step 2: Convert to fraction form
    399,242,075.65/550,975,217.51 = 240,522,162.89/x
  3. Step 3: Cross multiply
    399,242,075.65x = 550,975,217.51 × 240,522,162.89
  4. Step 4: Simplify right side
    399,242,075.65x = 132,521,751,012,139,840
  5. Step 5: Solve for x
    x = 132,521,751,012,139,840/399,242,075.65
  6. Step 6: Final answer
    x = 331,933,328.41

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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.