Home / 12,781,464.66-17,638,541.37-7,274,569.50

Finding the Fourth Proportional to 12,781,464.66, 17,638,541.37 and 7,274,569.50

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Solution

The fourth proportional to 12,781,464.66, 17,638,541.37 and 7,274,569.50 is: 10,038,974.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,464.66 : 17,638,541.37 = 7,274,569.50 : x
  2. Step 2: Convert to fraction form
    12,781,464.66/17,638,541.37 = 7,274,569.50/x
  3. Step 3: Cross multiply
    12,781,464.66x = 17,638,541.37 × 7,274,569.50
  4. Step 4: Simplify right side
    12,781,464.66x = 128,312,795,074,690.22
  5. Step 5: Solve for x
    x = 128,312,795,074,690.22/12,781,464.66
  6. Step 6: Final answer
    x = 10,038,974.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.