Home / 18,781,778.10-28,206,881.55-16,430,315.70

Finding the Fourth Proportional to 18,781,778.10, 28,206,881.55 and 16,430,315.70

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Solution

The fourth proportional to 18,781,778.10, 28,206,881.55 and 16,430,315.70 is: 24,675,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781,778.10 : 28,206,881.55 = 16,430,315.70 : x
  2. Step 2: Convert to fraction form
    18,781,778.10/28,206,881.55 = 16,430,315.70/x
  3. Step 3: Cross multiply
    18,781,778.10x = 28,206,881.55 × 16,430,315.70
  4. Step 4: Simplify right side
    18,781,778.10x = 463,447,968,779,005.31
  5. Step 5: Solve for x
    x = 463,447,968,779,005.31/18,781,778.10
  6. Step 6: Final answer
    x = 24,675,404.34

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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.