Home / 31,139,170.80-46,708,756.20-20,935,503.60

Finding the Fourth Proportional to 31,139,170.80, 46,708,756.20 and 20,935,503.60

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Solution

The fourth proportional to 31,139,170.80, 46,708,756.20 and 20,935,503.60 is: 31,403,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,139,170.80 : 46,708,756.20 = 20,935,503.60 : x
  2. Step 2: Convert to fraction form
    31,139,170.80/46,708,756.20 = 20,935,503.60/x
  3. Step 3: Cross multiply
    31,139,170.80x = 46,708,756.20 × 20,935,503.60
  4. Step 4: Simplify right side
    31,139,170.80x = 977,871,333,576,622.50
  5. Step 5: Solve for x
    x = 977,871,333,576,622.50/31,139,170.80
  6. Step 6: Final answer
    x = 31,403,255.40

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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.