Home / 213,495,742.44-320,014,429.74-90,570,339.06

Finding the Fourth Proportional to 213,495,742.44, 320,014,429.74 and 90,570,339.06

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Solution

The fourth proportional to 213,495,742.44, 320,014,429.74 and 90,570,339.06 is: 135,758,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,495,742.44 : 320,014,429.74 = 90,570,339.06 : x
  2. Step 2: Convert to fraction form
    213,495,742.44/320,014,429.74 = 90,570,339.06/x
  3. Step 3: Cross multiply
    213,495,742.44x = 320,014,429.74 × 90,570,339.06
  4. Step 4: Simplify right side
    213,495,742.44x = 28,983,815,405,644,348
  5. Step 5: Solve for x
    x = 28,983,815,405,644,348/213,495,742.44
  6. Step 6: Final answer
    x = 135,758,282.93

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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.