Home / 31,319,900.72-43,222,445.86-18,088,831.84

Finding the Fourth Proportional to 31,319,900.72, 43,222,445.86 and 18,088,831.84

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Solution

The fourth proportional to 31,319,900.72, 43,222,445.86 and 18,088,831.84 is: 24,963,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319,900.72 : 43,222,445.86 = 18,088,831.84 : x
  2. Step 2: Convert to fraction form
    31,319,900.72/43,222,445.86 = 18,088,831.84/x
  3. Step 3: Cross multiply
    31,319,900.72x = 43,222,445.86 × 18,088,831.84
  4. Step 4: Simplify right side
    31,319,900.72x = 781,843,554,875,044.12
  5. Step 5: Solve for x
    x = 781,843,554,875,044.12/31,319,900.72
  6. Step 6: Final answer
    x = 24,963,155.59

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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.