Home / 21,006,016.80-31,509,025.20-7,544,205.60

Finding the Fourth Proportional to 21,006,016.80, 31,509,025.20 and 7,544,205.60

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Solution

The fourth proportional to 21,006,016.80, 31,509,025.20 and 7,544,205.60 is: 11,316,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,006,016.80 : 31,509,025.20 = 7,544,205.60 : x
  2. Step 2: Convert to fraction form
    21,006,016.80/31,509,025.20 = 7,544,205.60/x
  3. Step 3: Cross multiply
    21,006,016.80x = 31,509,025.20 × 7,544,205.60
  4. Step 4: Simplify right side
    21,006,016.80x = 237,710,564,364,381.09
  5. Step 5: Solve for x
    x = 237,710,564,364,381.09/21,006,016.80
  6. Step 6: Final answer
    x = 11,316,308.40

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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.