Home / 378,070,915.28-521,834,937.72-246,240,421.52

Finding the Fourth Proportional to 378,070,915.28, 521,834,937.72 and 246,240,421.52

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Solution

The fourth proportional to 378,070,915.28, 521,834,937.72 and 246,240,421.52 is: 339,875,007.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,070,915.28 : 521,834,937.72 = 246,240,421.52 : x
  2. Step 2: Convert to fraction form
    378,070,915.28/521,834,937.72 = 246,240,421.52/x
  3. Step 3: Cross multiply
    378,070,915.28x = 521,834,937.72 × 246,240,421.52
  4. Step 4: Simplify right side
    378,070,915.28x = 128,496,855,028,035,760
  5. Step 5: Solve for x
    x = 128,496,855,028,035,760/378,070,915.28
  6. Step 6: Final answer
    x = 339,875,007.13

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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.