Home / 389,022,724.32-536,849,754.40-210,406,812.10

Finding the Fourth Proportional to 389,022,724.32, 536,849,754.40 and 210,406,812.10

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Solution

The fourth proportional to 389,022,724.32, 536,849,754.40 and 210,406,812.10 is: 290,360,532.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022,724.32 : 536,849,754.40 = 210,406,812.10 : x
  2. Step 2: Convert to fraction form
    389,022,724.32/536,849,754.40 = 210,406,812.10/x
  3. Step 3: Cross multiply
    389,022,724.32x = 536,849,754.40 × 210,406,812.10
  4. Step 4: Simplify right side
    389,022,724.32x = 112,956,845,399,971,936
  5. Step 5: Solve for x
    x = 112,956,845,399,971,936/389,022,724.32
  6. Step 6: Final answer
    x = 290,360,532.53

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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.