Home / 77,692,831.02-107,216,090.64-42,885,512.24

Finding the Fourth Proportional to 77,692,831.02, 107,216,090.64 and 42,885,512.24

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Solution

The fourth proportional to 77,692,831.02, 107,216,090.64 and 42,885,512.24 is: 59,181,997.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,692,831.02 : 107,216,090.64 = 42,885,512.24 : x
  2. Step 2: Convert to fraction form
    77,692,831.02/107,216,090.64 = 42,885,512.24/x
  3. Step 3: Cross multiply
    77,692,831.02x = 107,216,090.64 × 42,885,512.24
  4. Step 4: Simplify right side
    77,692,831.02x = 4,598,016,966,930,589
  5. Step 5: Solve for x
    x = 4,598,016,966,930,589/77,692,831.02
  6. Step 6: Final answer
    x = 59,181,997.96

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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.