Home / 20,158,128.96-30,237,307.20-5,012,062.08

Finding the Fourth Proportional to 20,158,128.96, 30,237,307.20 and 5,012,062.08

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Solution

The fourth proportional to 20,158,128.96, 30,237,307.20 and 5,012,062.08 is: 7,518,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158,128.96 : 30,237,307.20 = 5,012,062.08 : x
  2. Step 2: Convert to fraction form
    20,158,128.96/30,237,307.20 = 5,012,062.08/x
  3. Step 3: Cross multiply
    20,158,128.96x = 30,237,307.20 × 5,012,062.08
  4. Step 4: Simplify right side
    20,158,128.96x = 151,551,260,818,430.97
  5. Step 5: Solve for x
    x = 151,551,260,818,430.97/20,158,128.96
  6. Step 6: Final answer
    x = 7,518,121.40

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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.