Home / 385,566,218.80-578,349,328.20-331,818,506.80

Finding the Fourth Proportional to 385,566,218.80, 578,349,328.20 and 331,818,506.80

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Solution

The fourth proportional to 385,566,218.80, 578,349,328.20 and 331,818,506.80 is: 497,727,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,566,218.80 : 578,349,328.20 = 331,818,506.80 : x
  2. Step 2: Convert to fraction form
    385,566,218.80/578,349,328.20 = 331,818,506.80/x
  3. Step 3: Cross multiply
    385,566,218.80x = 578,349,328.20 × 331,818,506.80
  4. Step 4: Simplify right side
    385,566,218.80x = 191,907,010,492,107,168
  5. Step 5: Solve for x
    x = 191,907,010,492,107,168/385,566,218.80
  6. Step 6: Final answer
    x = 497,727,760.20

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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.