Home / 130,008,038.57-179,422,443.47-71,282,053.92

Finding the Fourth Proportional to 130,008,038.57, 179,422,443.47 and 71,282,053.92

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Solution

The fourth proportional to 130,008,038.57, 179,422,443.47 and 71,282,053.92 is: 98,375,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,008,038.57 : 179,422,443.47 = 71,282,053.92 : x
  2. Step 2: Convert to fraction form
    130,008,038.57/179,422,443.47 = 71,282,053.92/x
  3. Step 3: Cross multiply
    130,008,038.57x = 179,422,443.47 × 71,282,053.92
  4. Step 4: Simplify right side
    130,008,038.57x = 12,789,600,288,633,170
  5. Step 5: Solve for x
    x = 12,789,600,288,633,170/130,008,038.57
  6. Step 6: Final answer
    x = 98,375,457.62

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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.