Home / 72,811,047.45-100,478,566.21-39,771,283.94

Finding the Fourth Proportional to 72,811,047.45, 100,478,566.21 and 39,771,283.94

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Solution

The fourth proportional to 72,811,047.45, 100,478,566.21 and 39,771,283.94 is: 54,884,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,811,047.45 : 100,478,566.21 = 39,771,283.94 : x
  2. Step 2: Convert to fraction form
    72,811,047.45/100,478,566.21 = 39,771,283.94/x
  3. Step 3: Cross multiply
    72,811,047.45x = 100,478,566.21 × 39,771,283.94
  4. Step 4: Simplify right side
    72,811,047.45x = 3,996,161,586,621,999
  5. Step 5: Solve for x
    x = 3,996,161,586,621,999/72,811,047.45
  6. Step 6: Final answer
    x = 54,884,000.80

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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.