Home / 28,331,412.80-42,497,119.20-9,175,917.20

Finding the Fourth Proportional to 28,331,412.80, 42,497,119.20 and 9,175,917.20

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Solution

The fourth proportional to 28,331,412.80, 42,497,119.20 and 9,175,917.20 is: 13,763,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331,412.80 : 42,497,119.20 = 9,175,917.20 : x
  2. Step 2: Convert to fraction form
    28,331,412.80/42,497,119.20 = 9,175,917.20/x
  3. Step 3: Cross multiply
    28,331,412.80x = 42,497,119.20 × 9,175,917.20
  4. Step 4: Simplify right side
    28,331,412.80x = 389,950,047,017,730.25
  5. Step 5: Solve for x
    x = 389,950,047,017,730.25/28,331,412.80
  6. Step 6: Final answer
    x = 13,763,875.80

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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.