Home / 12,487,219.80-18,730,829.70-3,968,417.40

Finding the Fourth Proportional to 12,487,219.80, 18,730,829.70 and 3,968,417.40

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Solution

The fourth proportional to 12,487,219.80, 18,730,829.70 and 3,968,417.40 is: 5,952,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487,219.80 : 18,730,829.70 = 3,968,417.40 : x
  2. Step 2: Convert to fraction form
    12,487,219.80/18,730,829.70 = 3,968,417.40/x
  3. Step 3: Cross multiply
    12,487,219.80x = 18,730,829.70 × 3,968,417.40
  4. Step 4: Simplify right side
    12,487,219.80x = 74,331,750,497,916.78
  5. Step 5: Solve for x
    x = 74,331,750,497,916.78/12,487,219.80
  6. Step 6: Final answer
    x = 5,952,626.10

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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.