Home / 689,768,124.60-951,737,916.30-396,356,005.56

Finding the Fourth Proportional to 689,768,124.60, 951,737,916.30 and 396,356,005.56

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Solution

The fourth proportional to 689,768,124.60, 951,737,916.30 and 396,356,005.56 is: 546,889,636.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,768,124.60 : 951,737,916.30 = 396,356,005.56 : x
  2. Step 2: Convert to fraction form
    689,768,124.60/951,737,916.30 = 396,356,005.56/x
  3. Step 3: Cross multiply
    689,768,124.60x = 951,737,916.30 × 396,356,005.56
  4. Step 4: Simplify right side
    689,768,124.60x = 377,227,038,844,665,600
  5. Step 5: Solve for x
    x = 377,227,038,844,665,600/689,768,124.60
  6. Step 6: Final answer
    x = 546,889,636.37

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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.