Home / 12,219,979.60-18,341,779.20-7,437,010.60

Finding the Fourth Proportional to 12,219,979.60, 18,341,779.20 and 7,437,010.60

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Solution

The fourth proportional to 12,219,979.60, 18,341,779.20 and 7,437,010.60 is: 11,162,703.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,979.60 : 18,341,779.20 = 7,437,010.60 : x
  2. Step 2: Convert to fraction form
    12,219,979.60/18,341,779.20 = 7,437,010.60/x
  3. Step 3: Cross multiply
    12,219,979.60x = 18,341,779.20 × 7,437,010.60
  4. Step 4: Simplify right side
    12,219,979.60x = 136,408,006,333,259.50
  5. Step 5: Solve for x
    x = 136,408,006,333,259.50/12,219,979.60
  6. Step 6: Final answer
    x = 11,162,703.28

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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.