Home / 199,318,841.76-299,130,863.32-90,220,628.34

Finding the Fourth Proportional to 199,318,841.76, 299,130,863.32 and 90,220,628.34

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Solution

The fourth proportional to 199,318,841.76, 299,130,863.32 and 90,220,628.34 is: 135,400,016.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,318,841.76 : 299,130,863.32 = 90,220,628.34 : x
  2. Step 2: Convert to fraction form
    199,318,841.76/299,130,863.32 = 90,220,628.34/x
  3. Step 3: Cross multiply
    199,318,841.76x = 299,130,863.32 × 90,220,628.34
  4. Step 4: Simplify right side
    199,318,841.76x = 26,987,774,444,617,060
  5. Step 5: Solve for x
    x = 26,987,774,444,617,060/199,318,841.76
  6. Step 6: Final answer
    x = 135,400,016.41

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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.