Home / 500,653,789.24-690,889,137.36-277,634,902.72

Finding the Fourth Proportional to 500,653,789.24, 690,889,137.36 and 277,634,902.72

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Solution

The fourth proportional to 500,653,789.24, 690,889,137.36 and 277,634,902.72 is: 383,128,905.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,653,789.24 : 690,889,137.36 = 277,634,902.72 : x
  2. Step 2: Convert to fraction form
    500,653,789.24/690,889,137.36 = 277,634,902.72/x
  3. Step 3: Cross multiply
    500,653,789.24x = 690,889,137.36 × 277,634,902.72
  4. Step 4: Simplify right side
    500,653,789.24x = 191,814,938,441,248,352
  5. Step 5: Solve for x
    x = 191,814,938,441,248,352/500,653,789.24
  6. Step 6: Final answer
    x = 383,128,905.77

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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.