Home / 389,022,726.82-536,849,757.84-210,406,814.60

Finding the Fourth Proportional to 389,022,726.82, 536,849,757.84 and 210,406,814.60

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Solution

The fourth proportional to 389,022,726.82, 536,849,757.84 and 210,406,814.60 is: 290,360,535.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022,726.82 : 536,849,757.84 = 210,406,814.60 : x
  2. Step 2: Convert to fraction form
    389,022,726.82/536,849,757.84 = 210,406,814.60/x
  3. Step 3: Cross multiply
    389,022,726.82x = 536,849,757.84 × 210,406,814.60
  4. Step 4: Simplify right side
    389,022,726.82x = 112,956,847,465,895,760
  5. Step 5: Solve for x
    x = 112,956,847,465,895,760/389,022,726.82
  6. Step 6: Final answer
    x = 290,360,535.97

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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.