Home / 689,890,477.77-952,044,016.14-376,624,691.73

Finding the Fourth Proportional to 689,890,477.77, 952,044,016.14 and 376,624,691.73

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Solution

The fourth proportional to 689,890,477.77, 952,044,016.14 and 376,624,691.73 is: 519,739,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,890,477.77 : 952,044,016.14 = 376,624,691.73 : x
  2. Step 2: Convert to fraction form
    689,890,477.77/952,044,016.14 = 376,624,691.73/x
  3. Step 3: Cross multiply
    689,890,477.77x = 952,044,016.14 × 376,624,691.73
  4. Step 4: Simplify right side
    689,890,477.77x = 358,563,284,092,118,656
  5. Step 5: Solve for x
    x = 358,563,284,092,118,656/689,890,477.77
  6. Step 6: Final answer
    x = 519,739,430.60

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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.