Home / 356,551,508.49-491,995,625.74-207,835,421.01

Finding the Fourth Proportional to 356,551,508.49, 491,995,625.74 and 207,835,421.01

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Solution

The fourth proportional to 356,551,508.49, 491,995,625.74 and 207,835,421.01 is: 286,786,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,551,508.49 : 491,995,625.74 = 207,835,421.01 : x
  2. Step 2: Convert to fraction form
    356,551,508.49/491,995,625.74 = 207,835,421.01/x
  3. Step 3: Cross multiply
    356,551,508.49x = 491,995,625.74 × 207,835,421.01
  4. Step 4: Simplify right side
    356,551,508.49x = 102,254,118,010,751,296
  5. Step 5: Solve for x
    x = 102,254,118,010,751,296/356,551,508.49
  6. Step 6: Final answer
    x = 286,786,384.51

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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.