Home / 72,609,925.85-100,201,699.71-40,014,877.85

Finding the Fourth Proportional to 72,609,925.85, 100,201,699.71 and 40,014,877.85

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Solution

The fourth proportional to 72,609,925.85, 100,201,699.71 and 40,014,877.85 is: 55,220,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,609,925.85 : 100,201,699.71 = 40,014,877.85 : x
  2. Step 2: Convert to fraction form
    72,609,925.85/100,201,699.71 = 40,014,877.85/x
  3. Step 3: Cross multiply
    72,609,925.85x = 100,201,699.71 × 40,014,877.85
  4. Step 4: Simplify right side
    72,609,925.85x = 4,009,558,773,757,021.50
  5. Step 5: Solve for x
    x = 4,009,558,773,757,021.50/72,609,925.85
  6. Step 6: Final answer
    x = 55,220,532.55

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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.