Home / 15,784,053.82-21,783,831.98-13,130,213.22

Finding the Fourth Proportional to 15,784,053.82, 21,783,831.98 and 13,130,213.22

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Solution

The fourth proportional to 15,784,053.82, 21,783,831.98 and 13,130,213.22 is: 18,121,222.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784,053.82 : 21,783,831.98 = 13,130,213.22 : x
  2. Step 2: Convert to fraction form
    15,784,053.82/21,783,831.98 = 13,130,213.22/x
  3. Step 3: Cross multiply
    15,784,053.82x = 21,783,831.98 × 13,130,213.22
  4. Step 4: Simplify right side
    15,784,053.82x = 286,026,358,580,403.75
  5. Step 5: Solve for x
    x = 286,026,358,580,403.75/15,784,053.82
  6. Step 6: Final answer
    x = 18,121,222.97

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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.