Home / 21,013,498.80-31,509,750.60-9,641,098.80

Finding the Fourth Proportional to 21,013,498.80, 31,509,750.60 and 9,641,098.80

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Solution

The fourth proportional to 21,013,498.80, 31,509,750.60 and 9,641,098.80 is: 14,456,831.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013,498.80 : 31,509,750.60 = 9,641,098.80 : x
  2. Step 2: Convert to fraction form
    21,013,498.80/31,509,750.60 = 9,641,098.80/x
  3. Step 3: Cross multiply
    21,013,498.80x = 31,509,750.60 × 9,641,098.80
  4. Step 4: Simplify right side
    21,013,498.80x = 303,788,618,697,959.31
  5. Step 5: Solve for x
    x = 303,788,618,697,959.31/21,013,498.80
  6. Step 6: Final answer
    x = 14,456,831.85

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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.