Home / 21,813,942.40-32,720,913.60-7,432,230.40

Finding the Fourth Proportional to 21,813,942.40, 32,720,913.60 and 7,432,230.40

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Solution

The fourth proportional to 21,813,942.40, 32,720,913.60 and 7,432,230.40 is: 11,148,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813,942.40 : 32,720,913.60 = 7,432,230.40 : x
  2. Step 2: Convert to fraction form
    21,813,942.40/32,720,913.60 = 7,432,230.40/x
  3. Step 3: Cross multiply
    21,813,942.40x = 32,720,913.60 × 7,432,230.40
  4. Step 4: Simplify right side
    21,813,942.40x = 243,189,368,773,693.47
  5. Step 5: Solve for x
    x = 243,189,368,773,693.47/21,813,942.40
  6. Step 6: Final answer
    x = 11,148,345.60

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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.