Home / 143,266,024.61-197,705,222.75-79,685,935.01

Finding the Fourth Proportional to 143,266,024.61, 197,705,222.75 and 79,685,935.01

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Solution

The fourth proportional to 143,266,024.61, 197,705,222.75 and 79,685,935.01 is: 109,965,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,266,024.61 : 197,705,222.75 = 79,685,935.01 : x
  2. Step 2: Convert to fraction form
    143,266,024.61/197,705,222.75 = 79,685,935.01/x
  3. Step 3: Cross multiply
    143,266,024.61x = 197,705,222.75 × 79,685,935.01
  4. Step 4: Simplify right side
    143,266,024.61x = 15,754,325,530,404,762
  5. Step 5: Solve for x
    x = 15,754,325,530,404,762/143,266,024.61
  6. Step 6: Final answer
    x = 109,965,538.40

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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.