Home / 257,085,390.03-385,577,888.66-82,161,501.85

Finding the Fourth Proportional to 257,085,390.03, 385,577,888.66 and 82,161,501.85

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Solution

The fourth proportional to 257,085,390.03, 385,577,888.66 and 82,161,501.85 is: 123,226,210.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,085,390.03 : 385,577,888.66 = 82,161,501.85 : x
  2. Step 2: Convert to fraction form
    257,085,390.03/385,577,888.66 = 82,161,501.85/x
  3. Step 3: Cross multiply
    257,085,390.03x = 385,577,888.66 × 82,161,501.85
  4. Step 4: Simplify right side
    257,085,390.03x = 31,679,658,412,457,684
  5. Step 5: Solve for x
    x = 31,679,658,412,457,684/257,085,390.03
  6. Step 6: Final answer
    x = 123,226,210.59

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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.