Home / 389,022,716.68-536,849,744.02-210,406,804.36

Finding the Fourth Proportional to 389,022,716.68, 536,849,744.02 and 210,406,804.36

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Solution

The fourth proportional to 389,022,716.68, 536,849,744.02 and 210,406,804.36 is: 290,360,521.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022,716.68 : 536,849,744.02 = 210,406,804.36 : x
  2. Step 2: Convert to fraction form
    389,022,716.68/536,849,744.02 = 210,406,804.36/x
  3. Step 3: Cross multiply
    389,022,716.68x = 536,849,744.02 × 210,406,804.36
  4. Step 4: Simplify right side
    389,022,716.68x = 112,956,839,060,732,224
  5. Step 5: Solve for x
    x = 112,956,839,060,732,224/389,022,716.68
  6. Step 6: Final answer
    x = 290,360,521.94

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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.