Home / 21,205,007.60-31,807,511.40-10,423,972.40

Finding the Fourth Proportional to 21,205,007.60, 31,807,511.40 and 10,423,972.40

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Solution

The fourth proportional to 21,205,007.60, 31,807,511.40 and 10,423,972.40 is: 15,635,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205,007.60 : 31,807,511.40 = 10,423,972.40 : x
  2. Step 2: Convert to fraction form
    21,205,007.60/31,807,511.40 = 10,423,972.40/x
  3. Step 3: Cross multiply
    21,205,007.60x = 31,807,511.40 × 10,423,972.40
  4. Step 4: Simplify right side
    21,205,007.60x = 331,560,620,946,285.38
  5. Step 5: Solve for x
    x = 331,560,620,946,285.38/21,205,007.60
  6. Step 6: Final answer
    x = 15,635,958.60

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1.5x scale

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.