Home / 21,870,147.70-32,805,221.55-21,030,339.70

Finding the Fourth Proportional to 21,870,147.70, 32,805,221.55 and 21,030,339.70

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Solution

The fourth proportional to 21,870,147.70, 32,805,221.55 and 21,030,339.70 is: 31,545,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,147.70 : 32,805,221.55 = 21,030,339.70 : x
  2. Step 2: Convert to fraction form
    21,870,147.70/32,805,221.55 = 21,030,339.70/x
  3. Step 3: Cross multiply
    21,870,147.70x = 32,805,221.55 × 21,030,339.70
  4. Step 4: Simplify right side
    21,870,147.70x = 689,904,953,130,260.50
  5. Step 5: Solve for x
    x = 689,904,953,130,260.50/21,870,147.70
  6. Step 6: Final answer
    x = 31,545,509.55

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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.