Home / 116,725,856.32-160,998,141.44-81,926,312.32

Finding the Fourth Proportional to 116,725,856.32, 160,998,141.44 and 81,926,312.32

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Solution

The fourth proportional to 116,725,856.32, 160,998,141.44 and 81,926,312.32 is: 112,999,676.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,725,856.32 : 160,998,141.44 = 81,926,312.32 : x
  2. Step 2: Convert to fraction form
    116,725,856.32/160,998,141.44 = 81,926,312.32/x
  3. Step 3: Cross multiply
    116,725,856.32x = 160,998,141.44 × 81,926,312.32
  4. Step 4: Simplify right side
    116,725,856.32x = 13,189,984,018,552,974
  5. Step 5: Solve for x
    x = 13,189,984,018,552,974/116,725,856.32
  6. Step 6: Final answer
    x = 112,999,676.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.