Home / 523,302,179.28-722,172,411.72-288,367,973.40

Finding the Fourth Proportional to 523,302,179.28, 722,172,411.72 and 288,367,973.40

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Solution

The fourth proportional to 523,302,179.28, 722,172,411.72 and 288,367,973.40 is: 397,956,291.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,302,179.28 : 722,172,411.72 = 288,367,973.40 : x
  2. Step 2: Convert to fraction form
    523,302,179.28/722,172,411.72 = 288,367,973.40/x
  3. Step 3: Cross multiply
    523,302,179.28x = 722,172,411.72 × 288,367,973.40
  4. Step 4: Simplify right side
    523,302,179.28x = 208,251,394,813,086,784
  5. Step 5: Solve for x
    x = 208,251,394,813,086,784/523,302,179.28
  6. Step 6: Final answer
    x = 397,956,291.91

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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.