Home / 130,581,285.21-180,203,603.84-71,042,919.76

Finding the Fourth Proportional to 130,581,285.21, 180,203,603.84 and 71,042,919.76

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Solution

The fourth proportional to 130,581,285.21, 180,203,603.84 and 71,042,919.76 is: 98,040,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,581,285.21 : 180,203,603.84 = 71,042,919.76 : x
  2. Step 2: Convert to fraction form
    130,581,285.21/180,203,603.84 = 71,042,919.76/x
  3. Step 3: Cross multiply
    130,581,285.21x = 180,203,603.84 × 71,042,919.76
  4. Step 4: Simplify right side
    130,581,285.21x = 12,802,190,168,204,400
  5. Step 5: Solve for x
    x = 12,802,190,168,204,400/130,581,285.21
  6. Step 6: Final answer
    x = 98,040,007.40

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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.