Home / 18,621,000.60-27,931,500.90-5,157,828.60

Finding the Fourth Proportional to 18,621,000.60, 27,931,500.90 and 5,157,828.60

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Solution

The fourth proportional to 18,621,000.60, 27,931,500.90 and 5,157,828.60 is: 7,736,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621,000.60 : 27,931,500.90 = 5,157,828.60 : x
  2. Step 2: Convert to fraction form
    18,621,000.60/27,931,500.90 = 5,157,828.60/x
  3. Step 3: Cross multiply
    18,621,000.60x = 27,931,500.90 × 5,157,828.60
  4. Step 4: Simplify right side
    18,621,000.60x = 144,065,894,182,945.72
  5. Step 5: Solve for x
    x = 144,065,894,182,945.72/18,621,000.60
  6. Step 6: Final answer
    x = 7,736,742.90

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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.