Home / 499,047,485.40-748,500,369.30-171,538,111.80

Finding the Fourth Proportional to 499,047,485.40, 748,500,369.30 and 171,538,111.80

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Solution

The fourth proportional to 499,047,485.40, 748,500,369.30 and 171,538,111.80 is: 257,282,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,047,485.40 : 748,500,369.30 = 171,538,111.80 : x
  2. Step 2: Convert to fraction form
    499,047,485.40/748,500,369.30 = 171,538,111.80/x
  3. Step 3: Cross multiply
    499,047,485.40x = 748,500,369.30 × 171,538,111.80
  4. Step 4: Simplify right side
    499,047,485.40x = 128,396,340,031,324,688
  5. Step 5: Solve for x
    x = 128,396,340,031,324,688/499,047,485.40
  6. Step 6: Final answer
    x = 257,282,811.33

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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.