Home / 117,127,709,761.92-161,624,945,091.46-65,688,357,891.12

Finding the Fourth Proportional to 117,127,709,761.92, 161,624,945,091.46 and 65,688,357,891.12

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Solution

The fourth proportional to 117,127,709,761.92, 161,624,945,091.46 and 65,688,357,891.12 is: 90,643,599,698.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,127,709,761.92 : 161,624,945,091.46 = 65,688,357,891.12 : x
  2. Step 2: Convert to fraction form
    117,127,709,761.92/161,624,945,091.46 = 65,688,357,891.12/x
  3. Step 3: Cross multiply
    117,127,709,761.92x = 161,624,945,091.46 × 65,688,357,891.12
  4. Step 4: Simplify right side
    117,127,709,761.92x = 10,616,877,237,300,442,955,776
  5. Step 5: Solve for x
    x = 10,616,877,237,300,442,955,776/117,127,709,761.92
  6. Step 6: Final answer
    x = 90,643,599,698.83

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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.