Home / 648,619,119.77-974,480,815.70-415,905,769.88

Finding the Fourth Proportional to 648,619,119.77, 974,480,815.70 and 415,905,769.88

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Solution

The fourth proportional to 648,619,119.77, 974,480,815.70 and 415,905,769.88 is: 624,853,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,619,119.77 : 974,480,815.70 = 415,905,769.88 : x
  2. Step 2: Convert to fraction form
    648,619,119.77/974,480,815.70 = 415,905,769.88/x
  3. Step 3: Cross multiply
    648,619,119.77x = 974,480,815.70 × 415,905,769.88
  4. Step 4: Simplify right side
    648,619,119.77x = 405,292,193,880,046,976
  5. Step 5: Solve for x
    x = 405,292,193,880,046,976/648,619,119.77
  6. Step 6: Final answer
    x = 624,853,911.22

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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.