Home / 21,557,778.60-32,341,160.70-7,185,311.40

Finding the Fourth Proportional to 21,557,778.60, 32,341,160.70 and 7,185,311.40

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Solution

The fourth proportional to 21,557,778.60, 32,341,160.70 and 7,185,311.40 is: 10,779,464.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557,778.60 : 32,341,160.70 = 7,185,311.40 : x
  2. Step 2: Convert to fraction form
    21,557,778.60/32,341,160.70 = 7,185,311.40/x
  3. Step 3: Cross multiply
    21,557,778.60x = 32,341,160.70 × 7,185,311.40
  4. Step 4: Simplify right side
    21,557,778.60x = 232,381,310,666,942
  5. Step 5: Solve for x
    x = 232,381,310,666,942/21,557,778.60
  6. Step 6: Final answer
    x = 10,779,464.57

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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.