Home / 389,022,647.88-536,849,649.09-210,406,735.66

Finding the Fourth Proportional to 389,022,647.88, 536,849,649.09 and 210,406,735.66

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Solution

The fourth proportional to 389,022,647.88, 536,849,649.09 and 210,406,735.66 is: 290,360,427.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022,647.88 : 536,849,649.09 = 210,406,735.66 : x
  2. Step 2: Convert to fraction form
    389,022,647.88/536,849,649.09 = 210,406,735.66/x
  3. Step 3: Cross multiply
    389,022,647.88x = 536,849,649.09 × 210,406,735.66
  4. Step 4: Simplify right side
    389,022,647.88x = 112,956,782,204,316,032
  5. Step 5: Solve for x
    x = 112,956,782,204,316,032/389,022,647.88
  6. Step 6: Final answer
    x = 290,360,427.14

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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.