Home / 23,131,085.92-31,921,088.70-12,817,981.24

Finding the Fourth Proportional to 23,131,085.92, 31,921,088.70 and 12,817,981.24

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Solution

The fourth proportional to 23,131,085.92, 31,921,088.70 and 12,817,981.24 is: 17,688,919.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,131,085.92 : 31,921,088.70 = 12,817,981.24 : x
  2. Step 2: Convert to fraction form
    23,131,085.92/31,921,088.70 = 12,817,981.24/x
  3. Step 3: Cross multiply
    23,131,085.92x = 31,921,088.70 × 12,817,981.24
  4. Step 4: Simplify right side
    23,131,085.92x = 409,163,916,116,976
  5. Step 5: Solve for x
    x = 409,163,916,116,976/23,131,085.92
  6. Step 6: Final answer
    x = 17,688,919.47

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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.