Home / 21,018,886.30-31,528,329.45-5,872,817.80

Finding the Fourth Proportional to 21,018,886.30, 31,528,329.45 and 5,872,817.80

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Solution

The fourth proportional to 21,018,886.30, 31,528,329.45 and 5,872,817.80 is: 8,809,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,886.30 : 31,528,329.45 = 5,872,817.80 : x
  2. Step 2: Convert to fraction form
    21,018,886.30/31,528,329.45 = 5,872,817.80/x
  3. Step 3: Cross multiply
    21,018,886.30x = 31,528,329.45 × 5,872,817.80
  4. Step 4: Simplify right side
    21,018,886.30x = 185,160,134,398,224.19
  5. Step 5: Solve for x
    x = 185,160,134,398,224.19/21,018,886.30
  6. Step 6: Final answer
    x = 8,809,226.70

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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.