Home / 8,159,779.80-12,239,669.70-4,912,522.20

Finding the Fourth Proportional to 8,159,779.80, 12,239,669.70 and 4,912,522.20

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Solution

The fourth proportional to 8,159,779.80, 12,239,669.70 and 4,912,522.20 is: 7,368,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159,779.80 : 12,239,669.70 = 4,912,522.20 : x
  2. Step 2: Convert to fraction form
    8,159,779.80/12,239,669.70 = 4,912,522.20/x
  3. Step 3: Cross multiply
    8,159,779.80x = 12,239,669.70 × 4,912,522.20
  4. Step 4: Simplify right side
    8,159,779.80x = 60,127,649,121,917.34
  5. Step 5: Solve for x
    x = 60,127,649,121,917.34/8,159,779.80
  6. Step 6: Final answer
    x = 7,368,783.30

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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.