Home / 665,280,672.70-997,921,009.05-276,974,448.70

Finding the Fourth Proportional to 665,280,672.70, 997,921,009.05 and 276,974,448.70

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Solution

The fourth proportional to 665,280,672.70, 997,921,009.05 and 276,974,448.70 is: 415,461,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,280,672.70 : 997,921,009.05 = 276,974,448.70 : x
  2. Step 2: Convert to fraction form
    665,280,672.70/997,921,009.05 = 276,974,448.70/x
  3. Step 3: Cross multiply
    665,280,672.70x = 997,921,009.05 × 276,974,448.70
  4. Step 4: Simplify right side
    665,280,672.70x = 276,398,621,327,771,424
  5. Step 5: Solve for x
    x = 276,398,621,327,771,424/665,280,672.70
  6. Step 6: Final answer
    x = 415,461,673.05

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.