Home / 12,275,312.80-18,411,219.60-4,188,661.60

Finding the Fourth Proportional to 12,275,312.80, 18,411,219.60 and 4,188,661.60

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Solution

The fourth proportional to 12,275,312.80, 18,411,219.60 and 4,188,661.60 is: 6,282,395.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275,312.80 : 18,411,219.60 = 4,188,661.60 : x
  2. Step 2: Convert to fraction form
    12,275,312.80/18,411,219.60 = 4,188,661.60/x
  3. Step 3: Cross multiply
    12,275,312.80x = 18,411,219.60 × 4,188,661.60
  4. Step 4: Simplify right side
    12,275,312.80x = 77,118,368,547,687.38
  5. Step 5: Solve for x
    x = 77,118,368,547,687.38/12,275,312.80
  6. Step 6: Final answer
    x = 6,282,395.39

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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.