Home / 135,439,051.23-186,899,635.11-76,702,136.67

Finding the Fourth Proportional to 135,439,051.23, 186,899,635.11 and 76,702,136.67

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Solution

The fourth proportional to 135,439,051.23, 186,899,635.11 and 76,702,136.67 is: 105,845,405.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,439,051.23 : 186,899,635.11 = 76,702,136.67 : x
  2. Step 2: Convert to fraction form
    135,439,051.23/186,899,635.11 = 76,702,136.67/x
  3. Step 3: Cross multiply
    135,439,051.23x = 186,899,635.11 × 76,702,136.67
  4. Step 4: Simplify right side
    135,439,051.23x = 14,335,601,355,780,352
  5. Step 5: Solve for x
    x = 14,335,601,355,780,352/135,439,051.23
  6. Step 6: Final answer
    x = 105,845,405.93

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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.