Home / 689,890,483.96-952,044,024.68-376,624,697.92

Finding the Fourth Proportional to 689,890,483.96, 952,044,024.68 and 376,624,697.92

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Solution

The fourth proportional to 689,890,483.96, 952,044,024.68 and 376,624,697.92 is: 519,739,439.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,890,483.96 : 952,044,024.68 = 376,624,697.92 : x
  2. Step 2: Convert to fraction form
    689,890,483.96/952,044,024.68 = 376,624,697.92/x
  3. Step 3: Cross multiply
    689,890,483.96x = 952,044,024.68 × 376,624,697.92
  4. Step 4: Simplify right side
    689,890,483.96x = 358,563,293,198,795,136
  5. Step 5: Solve for x
    x = 358,563,293,198,795,136/689,890,483.96
  6. Step 6: Final answer
    x = 519,739,439.14

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Double scale
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1.5x scale

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.