Home / 21,063,863.36-31,596,889.08-6,688,056.80

Finding the Fourth Proportional to 21,063,863.36, 31,596,889.08 and 6,688,056.80

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Solution

The fourth proportional to 21,063,863.36, 31,596,889.08 and 6,688,056.80 is: 10,032,432.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063,863.36 : 31,596,889.08 = 6,688,056.80 : x
  2. Step 2: Convert to fraction form
    21,063,863.36/31,596,889.08 = 6,688,056.80/x
  3. Step 3: Cross multiply
    21,063,863.36x = 31,596,889.08 × 6,688,056.80
  4. Step 4: Simplify right side
    21,063,863.36x = 211,321,788,870,339.72
  5. Step 5: Solve for x
    x = 211,321,788,870,339.72/21,063,863.36
  6. Step 6: Final answer
    x = 10,032,432.57

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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.