Home / 161,496,111-222,835,232.64-90,920,746.20

Finding the Fourth Proportional to 161,496,111, 222,835,232.64 and 90,920,746.20

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Solution

The fourth proportional to 161,496,111, 222,835,232.64 and 90,920,746.20 is: 125,454,077.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,496,111 : 222,835,232.64 = 90,920,746.20 : x
  2. Step 2: Convert to fraction form
    161,496,111/222,835,232.64 = 90,920,746.20/x
  3. Step 3: Cross multiply
    161,496,111x = 222,835,232.64 × 90,920,746.20
  4. Step 4: Simplify right side
    161,496,111x = 20,260,345,631,279,396
  5. Step 5: Solve for x
    x = 20,260,345,631,279,396/161,496,111
  6. Step 6: Final answer
    x = 125,454,077.54

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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.