Home / 19,879,051.40-29,818,577.10-8,520,648.20

Finding the Fourth Proportional to 19,879,051.40, 29,818,577.10 and 8,520,648.20

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Solution

The fourth proportional to 19,879,051.40, 29,818,577.10 and 8,520,648.20 is: 12,780,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879,051.40 : 29,818,577.10 = 8,520,648.20 : x
  2. Step 2: Convert to fraction form
    19,879,051.40/29,818,577.10 = 8,520,648.20/x
  3. Step 3: Cross multiply
    19,879,051.40x = 29,818,577.10 × 8,520,648.20
  4. Step 4: Simplify right side
    19,879,051.40x = 254,073,605,293,676.22
  5. Step 5: Solve for x
    x = 254,073,605,293,676.22/19,879,051.40
  6. Step 6: Final answer
    x = 12,780,972.30

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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.