Home / 648,619,224.23-974,480,972.72-415,905,874.31

Finding the Fourth Proportional to 648,619,224.23, 974,480,972.72 and 415,905,874.31

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Solution

The fourth proportional to 648,619,224.23, 974,480,972.72 and 415,905,874.31 is: 624,854,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,619,224.23 : 974,480,972.72 = 415,905,874.31 : x
  2. Step 2: Convert to fraction form
    648,619,224.23/974,480,972.72 = 415,905,874.31/x
  3. Step 3: Cross multiply
    648,619,224.23x = 974,480,972.72 × 415,905,874.31
  4. Step 4: Simplify right side
    648,619,224.23x = 405,292,360,950,618,944
  5. Step 5: Solve for x
    x = 405,292,360,950,618,944/648,619,224.23
  6. Step 6: Final answer
    x = 624,854,068.17

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Double scale
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1.5x scale

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.