Home / 21,063,034.80-31,531,566.60-19,817,319.60

Finding the Fourth Proportional to 21,063,034.80, 31,531,566.60 and 19,817,319.60

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Solution

The fourth proportional to 21,063,034.80, 31,531,566.60 and 19,817,319.60 is: 29,666,718.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063,034.80 : 31,531,566.60 = 19,817,319.60 : x
  2. Step 2: Convert to fraction form
    21,063,034.80/31,531,566.60 = 19,817,319.60/x
  3. Step 3: Cross multiply
    21,063,034.80x = 31,531,566.60 × 19,817,319.60
  4. Step 4: Simplify right side
    21,063,034.80x = 624,871,132,800,885.38
  5. Step 5: Solve for x
    x = 624,871,132,800,885.38/21,063,034.80
  6. Step 6: Final answer
    x = 29,666,718.91

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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.