Home / 21,018,885.30-31,528,327.95-5,872,816.80

Finding the Fourth Proportional to 21,018,885.30, 31,528,327.95 and 5,872,816.80

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Solution

The fourth proportional to 21,018,885.30, 31,528,327.95 and 5,872,816.80 is: 8,809,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,885.30 : 31,528,327.95 = 5,872,816.80 : x
  2. Step 2: Convert to fraction form
    21,018,885.30/31,528,327.95 = 5,872,816.80/x
  3. Step 3: Cross multiply
    21,018,885.30x = 31,528,327.95 × 5,872,816.80
  4. Step 4: Simplify right side
    21,018,885.30x = 185,160,094,060,669.56
  5. Step 5: Solve for x
    x = 185,160,094,060,669.56/21,018,885.30
  6. Step 6: Final answer
    x = 8,809,225.20

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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.