Home / 134,857,709.22-186,103,638.90-72,978,047.76

Finding the Fourth Proportional to 134,857,709.22, 186,103,638.90 and 72,978,047.76

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Solution

The fourth proportional to 134,857,709.22, 186,103,638.90 and 72,978,047.76 is: 100,709,706.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,709.22 : 186,103,638.90 = 72,978,047.76 : x
  2. Step 2: Convert to fraction form
    134,857,709.22/186,103,638.90 = 72,978,047.76/x
  3. Step 3: Cross multiply
    134,857,709.22x = 186,103,638.90 × 72,978,047.76
  4. Step 4: Simplify right side
    134,857,709.22x = 13,581,480,247,953,996
  5. Step 5: Solve for x
    x = 13,581,480,247,953,996/134,857,709.22
  6. Step 6: Final answer
    x = 100,709,706.00

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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.