Home / 145,451,570.99-200,727,407.23-79,376,325.51

Finding the Fourth Proportional to 145,451,570.99, 200,727,407.23 and 79,376,325.51

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Solution

The fourth proportional to 145,451,570.99, 200,727,407.23 and 79,376,325.51 is: 109,541,642.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,451,570.99 : 200,727,407.23 = 79,376,325.51 : x
  2. Step 2: Convert to fraction form
    145,451,570.99/200,727,407.23 = 79,376,325.51/x
  3. Step 3: Cross multiply
    145,451,570.99x = 200,727,407.23 × 79,376,325.51
  4. Step 4: Simplify right side
    145,451,570.99x = 15,933,004,013,666,288
  5. Step 5: Solve for x
    x = 15,933,004,013,666,288/145,451,570.99
  6. Step 6: Final answer
    x = 109,541,642.66

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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.