Home / 117,335,328.18-161,921,562.75-65,124,814.74

Finding the Fourth Proportional to 117,335,328.18, 161,921,562.75 and 65,124,814.74

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Solution

The fourth proportional to 117,335,328.18, 161,921,562.75 and 65,124,814.74 is: 89,871,583.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,335,328.18 : 161,921,562.75 = 65,124,814.74 : x
  2. Step 2: Convert to fraction form
    117,335,328.18/161,921,562.75 = 65,124,814.74/x
  3. Step 3: Cross multiply
    117,335,328.18x = 161,921,562.75 × 65,124,814.74
  4. Step 4: Simplify right side
    117,335,328.18x = 10,545,111,776,505,036
  5. Step 5: Solve for x
    x = 10,545,111,776,505,036/117,335,328.18
  6. Step 6: Final answer
    x = 89,871,583.78

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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.