Home / 387,240,172.61-534,375,889.11-211,024,412.24

Finding the Fourth Proportional to 387,240,172.61, 534,375,889.11 and 211,024,412.24

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Solution

The fourth proportional to 387,240,172.61, 534,375,889.11 and 211,024,412.24 is: 291,205,215.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,240,172.61 : 534,375,889.11 = 211,024,412.24 : x
  2. Step 2: Convert to fraction form
    387,240,172.61/534,375,889.11 = 211,024,412.24/x
  3. Step 3: Cross multiply
    387,240,172.61x = 534,375,889.11 × 211,024,412.24
  4. Step 4: Simplify right side
    387,240,172.61x = 112,766,357,911,993,296
  5. Step 5: Solve for x
    x = 112,766,357,911,993,296/387,240,172.61
  6. Step 6: Final answer
    x = 291,205,215.50

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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.