Home / 213,806,316.18-320,830,784.73-115,436,703.72

Finding the Fourth Proportional to 213,806,316.18, 320,830,784.73 and 115,436,703.72

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Solution

The fourth proportional to 213,806,316.18, 320,830,784.73 and 115,436,703.72 is: 173,220,552.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,806,316.18 : 320,830,784.73 = 115,436,703.72 : x
  2. Step 2: Convert to fraction form
    213,806,316.18/320,830,784.73 = 115,436,703.72/x
  3. Step 3: Cross multiply
    213,806,316.18x = 320,830,784.73 × 115,436,703.72
  4. Step 4: Simplify right side
    213,806,316.18x = 37,035,648,241,132,112
  5. Step 5: Solve for x
    x = 37,035,648,241,132,112/213,806,316.18
  6. Step 6: Final answer
    x = 173,220,552.61

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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.