Home / 5,429,712.80-8,142,495.60-1,641,936.80

Finding the Fourth Proportional to 5,429,712.80, 8,142,495.60 and 1,641,936.80

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Solution

The fourth proportional to 5,429,712.80, 8,142,495.60 and 1,641,936.80 is: 2,462,278.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,712.80 : 8,142,495.60 = 1,641,936.80 : x
  2. Step 2: Convert to fraction form
    5,429,712.80/8,142,495.60 = 1,641,936.80/x
  3. Step 3: Cross multiply
    5,429,712.80x = 8,142,495.60 × 1,641,936.80
  4. Step 4: Simplify right side
    5,429,712.80x = 13,369,463,169,478.08
  5. Step 5: Solve for x
    x = 13,369,463,169,478.08/5,429,712.80
  6. Step 6: Final answer
    x = 2,462,278.15

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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.