Home / 139,968,121.60-209,952,182.40-111,057,731.20

Finding the Fourth Proportional to 139,968,121.60, 209,952,182.40 and 111,057,731.20

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Solution

The fourth proportional to 139,968,121.60, 209,952,182.40 and 111,057,731.20 is: 166,586,596.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,121.60 : 209,952,182.40 = 111,057,731.20 : x
  2. Step 2: Convert to fraction form
    139,968,121.60/209,952,182.40 = 111,057,731.20/x
  3. Step 3: Cross multiply
    139,968,121.60x = 209,952,182.40 × 111,057,731.20
  4. Step 4: Simplify right side
    139,968,121.60x = 23,316,813,037,832,572
  5. Step 5: Solve for x
    x = 23,316,813,037,832,572/139,968,121.60
  6. Step 6: Final answer
    x = 166,586,596.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.