Home / 648,619,265.96-974,481,035.52-415,905,916.04

Finding the Fourth Proportional to 648,619,265.96, 974,481,035.52 and 415,905,916.04

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Solution

The fourth proportional to 648,619,265.96, 974,481,035.52 and 415,905,916.04 is: 624,854,130.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,619,265.96 : 974,481,035.52 = 415,905,916.04 : x
  2. Step 2: Convert to fraction form
    648,619,265.96/974,481,035.52 = 415,905,916.04/x
  3. Step 3: Cross multiply
    648,619,265.96x = 974,481,035.52 × 415,905,916.04
  4. Step 4: Simplify right side
    648,619,265.96x = 405,292,427,741,553,408
  5. Step 5: Solve for x
    x = 405,292,427,741,553,408/648,619,265.96
  6. Step 6: Final answer
    x = 624,854,130.94

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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.