Home / 72,871,405,811.70-109,307,108,717.55-43,460,657,805.30

Finding the Fourth Proportional to 72,871,405,811.70, 109,307,108,717.55 and 43,460,657,805.30

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Solution

The fourth proportional to 72,871,405,811.70, 109,307,108,717.55 and 43,460,657,805.30 is: 65,190,986,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,871,405,811.70 : 109,307,108,717.55 = 43,460,657,805.30 : x
  2. Step 2: Convert to fraction form
    72,871,405,811.70/109,307,108,717.55 = 43,460,657,805.30/x
  3. Step 3: Cross multiply
    72,871,405,811.70x = 109,307,108,717.55 × 43,460,657,805.30
  4. Step 4: Simplify right side
    72,871,405,811.70x = 4,750,558,847,660,165,431,296
  5. Step 5: Solve for x
    x = 4,750,558,847,660,165,431,296/72,871,405,811.70
  6. Step 6: Final answer
    x = 65,190,986,707.95

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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.