Home / 10,519,486.60-15,779,229.90-8,628,363.40

Finding the Fourth Proportional to 10,519,486.60, 15,779,229.90 and 8,628,363.40

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Solution

The fourth proportional to 10,519,486.60, 15,779,229.90 and 8,628,363.40 is: 12,942,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519,486.60 : 15,779,229.90 = 8,628,363.40 : x
  2. Step 2: Convert to fraction form
    10,519,486.60/15,779,229.90 = 8,628,363.40/x
  3. Step 3: Cross multiply
    10,519,486.60x = 15,779,229.90 × 8,628,363.40
  4. Step 4: Simplify right side
    10,519,486.60x = 136,148,929,749,345.67
  5. Step 5: Solve for x
    x = 136,148,929,749,345.67/10,519,486.60
  6. Step 6: Final answer
    x = 12,942,545.10

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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.