Home / 31,507,311.40-47,260,967.10-20,160,572.20

Finding the Fourth Proportional to 31,507,311.40, 47,260,967.10 and 20,160,572.20

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Solution

The fourth proportional to 31,507,311.40, 47,260,967.10 and 20,160,572.20 is: 30,240,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507,311.40 : 47,260,967.10 = 20,160,572.20 : x
  2. Step 2: Convert to fraction form
    31,507,311.40/47,260,967.10 = 20,160,572.20/x
  3. Step 3: Cross multiply
    31,507,311.40x = 47,260,967.10 × 20,160,572.20
  4. Step 4: Simplify right side
    31,507,311.40x = 952,808,139,461,374.62
  5. Step 5: Solve for x
    x = 952,808,139,461,374.62/31,507,311.40
  6. Step 6: Final answer
    x = 30,240,858.30

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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.