Home / 77,493,000.76-116,239,661.06-72,757,861.45

Finding the Fourth Proportional to 77,493,000.76, 116,239,661.06 and 72,757,861.45

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Solution

The fourth proportional to 77,493,000.76, 116,239,661.06 and 72,757,861.45 is: 109,136,942.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,493,000.76 : 116,239,661.06 = 72,757,861.45 : x
  2. Step 2: Convert to fraction form
    77,493,000.76/116,239,661.06 = 72,757,861.45/x
  3. Step 3: Cross multiply
    77,493,000.76x = 116,239,661.06 × 72,757,861.45
  4. Step 4: Simplify right side
    77,493,000.76x = 8,457,349,153,744,053
  5. Step 5: Solve for x
    x = 8,457,349,153,744,053/77,493,000.76
  6. Step 6: Final answer
    x = 109,136,942.32

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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.