Home / 117,042,321.64-161,518,417.86-64,834,738.78

Finding the Fourth Proportional to 117,042,321.64, 161,518,417.86 and 64,834,738.78

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Solution

The fourth proportional to 117,042,321.64, 161,518,417.86 and 64,834,738.78 is: 89,471,947.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,042,321.64 : 161,518,417.86 = 64,834,738.78 : x
  2. Step 2: Convert to fraction form
    117,042,321.64/161,518,417.86 = 64,834,738.78/x
  3. Step 3: Cross multiply
    117,042,321.64x = 161,518,417.86 × 64,834,738.78
  4. Step 4: Simplify right side
    117,042,321.64x = 10,472,004,430,111,988
  5. Step 5: Solve for x
    x = 10,472,004,430,111,988/117,042,321.64
  6. Step 6: Final answer
    x = 89,471,947.27

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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.