Home / 12,539,076-18,792,871.92-6,781,580.16

Finding the Fourth Proportional to 12,539,076, 18,792,871.92 and 6,781,580.16

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Solution

The fourth proportional to 12,539,076, 18,792,871.92 and 6,781,580.16 is: 10,163,856.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539,076 : 18,792,871.92 = 6,781,580.16 : x
  2. Step 2: Convert to fraction form
    12,539,076/18,792,871.92 = 6,781,580.16/x
  3. Step 3: Cross multiply
    12,539,076x = 18,792,871.92 × 6,781,580.16
  4. Step 4: Simplify right side
    12,539,076x = 127,445,367,362,093.12
  5. Step 5: Solve for x
    x = 127,445,367,362,093.12/12,539,076
  6. Step 6: Final answer
    x = 10,163,856.36

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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.