Home / 21,130,999.20-31,696,498.80-5,984,930.70

Finding the Fourth Proportional to 21,130,999.20, 31,696,498.80 and 5,984,930.70

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Solution

The fourth proportional to 21,130,999.20, 31,696,498.80 and 5,984,930.70 is: 8,977,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,130,999.20 : 31,696,498.80 = 5,984,930.70 : x
  2. Step 2: Convert to fraction form
    21,130,999.20/31,696,498.80 = 5,984,930.70/x
  3. Step 3: Cross multiply
    21,130,999.20x = 31,696,498.80 × 5,984,930.70
  4. Step 4: Simplify right side
    21,130,999.20x = 189,701,348,750,633.16
  5. Step 5: Solve for x
    x = 189,701,348,750,633.16/21,130,999.20
  6. Step 6: Final answer
    x = 8,977,396.05

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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.