Home / 21,249,953.70-31,821,786.45-16,998,425.70

Finding the Fourth Proportional to 21,249,953.70, 31,821,786.45 and 16,998,425.70

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Solution

The fourth proportional to 21,249,953.70, 31,821,786.45 and 16,998,425.70 is: 25,455,127.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249,953.70 : 31,821,786.45 = 16,998,425.70 : x
  2. Step 2: Convert to fraction form
    21,249,953.70/31,821,786.45 = 16,998,425.70/x
  3. Step 3: Cross multiply
    21,249,953.70x = 31,821,786.45 × 16,998,425.70
  4. Step 4: Simplify right side
    21,249,953.70x = 540,920,272,611,591.75
  5. Step 5: Solve for x
    x = 540,920,272,611,591.75/21,249,953.70
  6. Step 6: Final answer
    x = 25,455,127.11

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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.