Home / 378,070,914.28-521,834,936.34-246,240,420.52

Finding the Fourth Proportional to 378,070,914.28, 521,834,936.34 and 246,240,420.52

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Solution

The fourth proportional to 378,070,914.28, 521,834,936.34 and 246,240,420.52 is: 339,875,005.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,070,914.28 : 521,834,936.34 = 246,240,420.52 : x
  2. Step 2: Convert to fraction form
    378,070,914.28/521,834,936.34 = 246,240,420.52/x
  3. Step 3: Cross multiply
    378,070,914.28x = 521,834,936.34 × 246,240,420.52
  4. Step 4: Simplify right side
    378,070,914.28x = 128,496,854,166,389,024
  5. Step 5: Solve for x
    x = 128,496,854,166,389,024/378,070,914.28
  6. Step 6: Final answer
    x = 339,875,005.75

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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.