Home / 77,892,807.57-107,485,378.29-43,076,831.91

Finding the Fourth Proportional to 77,892,807.57, 107,485,378.29 and 43,076,831.91

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Solution

The fourth proportional to 77,892,807.57, 107,485,378.29 and 43,076,831.91 is: 59,442,324.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,892,807.57 : 107,485,378.29 = 43,076,831.91 : x
  2. Step 2: Convert to fraction form
    77,892,807.57/107,485,378.29 = 43,076,831.91/x
  3. Step 3: Cross multiply
    77,892,807.57x = 107,485,378.29 × 43,076,831.91
  4. Step 4: Simplify right side
    77,892,807.57x = 4,630,129,573,381,093
  5. Step 5: Solve for x
    x = 4,630,129,573,381,093/77,892,807.57
  6. Step 6: Final answer
    x = 59,442,324.88

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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.