Home / 12,792,931.92-17,648,971.20-8,927,696.16

Finding the Fourth Proportional to 12,792,931.92, 17,648,971.20 and 8,927,696.16

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Solution

The fourth proportional to 12,792,931.92, 17,648,971.20 and 8,927,696.16 is: 12,316,539.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792,931.92 : 17,648,971.20 = 8,927,696.16 : x
  2. Step 2: Convert to fraction form
    12,792,931.92/17,648,971.20 = 8,927,696.16/x
  3. Step 3: Cross multiply
    12,792,931.92x = 17,648,971.20 × 8,927,696.16
  4. Step 4: Simplify right side
    12,792,931.92x = 157,564,652,410,190.59
  5. Step 5: Solve for x
    x = 157,564,652,410,190.59/12,792,931.92
  6. Step 6: Final answer
    x = 12,316,539.59

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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.