Home / 145,186,731.99-200,355,156.45-79,107,777.23

Finding the Fourth Proportional to 145,186,731.99, 200,355,156.45 and 79,107,777.23

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Solution

The fourth proportional to 145,186,731.99, 200,355,156.45 and 79,107,777.23 is: 109,167,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,186,731.99 : 200,355,156.45 = 79,107,777.23 : x
  2. Step 2: Convert to fraction form
    145,186,731.99/200,355,156.45 = 79,107,777.23/x
  3. Step 3: Cross multiply
    145,186,731.99x = 200,355,156.45 × 79,107,777.23
  4. Step 4: Simplify right side
    145,186,731.99x = 15,849,651,082,326,620
  5. Step 5: Solve for x
    x = 15,849,651,082,326,620/145,186,731.99
  6. Step 6: Final answer
    x = 109,167,352.04

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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.