Home / 72,609,771.88-100,203,585.06-40,016,823.40

Finding the Fourth Proportional to 72,609,771.88, 100,203,585.06 and 40,016,823.40

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Solution

The fourth proportional to 72,609,771.88, 100,203,585.06 and 40,016,823.40 is: 55,224,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,609,771.88 : 100,203,585.06 = 40,016,823.40 : x
  2. Step 2: Convert to fraction form
    72,609,771.88/100,203,585.06 = 40,016,823.40/x
  3. Step 3: Cross multiply
    72,609,771.88x = 100,203,585.06 × 40,016,823.40
  4. Step 4: Simplify right side
    72,609,771.88x = 4,009,829,167,392,898.50
  5. Step 5: Solve for x
    x = 4,009,829,167,392,898.50/72,609,771.88
  6. Step 6: Final answer
    x = 55,224,373.57

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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.