Home / 755,889,309.78-1,043,127,238.83-408,208,797.78

Finding the Fourth Proportional to 755,889,309.78, 1,043,127,238.83 and 408,208,797.78

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Solution

The fourth proportional to 755,889,309.78, 1,043,127,238.83 and 408,208,797.78 is: 563,328,136.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,889,309.78 : 1,043,127,238.83 = 408,208,797.78 : x
  2. Step 2: Convert to fraction form
    755,889,309.78/1,043,127,238.83 = 408,208,797.78/x
  3. Step 3: Cross multiply
    755,889,309.78x = 1,043,127,238.83 × 408,208,797.78
  4. Step 4: Simplify right side
    755,889,309.78x = 425,813,716,094,365,248
  5. Step 5: Solve for x
    x = 425,813,716,094,365,248/755,889,309.78
  6. Step 6: Final answer
    x = 563,328,136.26

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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.