Home / 57,931,930-79,946,910.66-31,470,775.48

Finding the Fourth Proportional to 57,931,930, 79,946,910.66 and 31,470,775.48

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Solution

The fourth proportional to 57,931,930, 79,946,910.66 and 31,470,775.48 is: 43,430,130.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,931,930 : 79,946,910.66 = 31,470,775.48 : x
  2. Step 2: Convert to fraction form
    57,931,930/79,946,910.66 = 31,470,775.48/x
  3. Step 3: Cross multiply
    57,931,930x = 79,946,910.66 × 31,470,775.48
  4. Step 4: Simplify right side
    57,931,930x = 2,515,991,275,700,478.50
  5. Step 5: Solve for x
    x = 2,515,991,275,700,478.50/57,931,930
  6. Step 6: Final answer
    x = 43,430,130.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.