Home / 21,167,803.60-31,759,999.80-8,386,133.20

Finding the Fourth Proportional to 21,167,803.60, 31,759,999.80 and 8,386,133.20

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Solution

The fourth proportional to 21,167,803.60, 31,759,999.80 and 8,386,133.20 is: 12,582,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,803.60 : 31,759,999.80 = 8,386,133.20 : x
  2. Step 2: Convert to fraction form
    21,167,803.60/31,759,999.80 = 8,386,133.20/x
  3. Step 3: Cross multiply
    21,167,803.60x = 31,759,999.80 × 8,386,133.20
  4. Step 4: Simplify right side
    21,167,803.60x = 266,343,588,754,773.38
  5. Step 5: Solve for x
    x = 266,343,588,754,773.38/21,167,803.60
  6. Step 6: Final answer
    x = 12,582,485.83

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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.