Home / 389,022,723.32-536,849,753.02-210,406,811.10

Finding the Fourth Proportional to 389,022,723.32, 536,849,753.02 and 210,406,811.10

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Solution

The fourth proportional to 389,022,723.32, 536,849,753.02 and 210,406,811.10 is: 290,360,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022,723.32 : 536,849,753.02 = 210,406,811.10 : x
  2. Step 2: Convert to fraction form
    389,022,723.32/536,849,753.02 = 210,406,811.10/x
  3. Step 3: Cross multiply
    389,022,723.32x = 536,849,753.02 × 210,406,811.10
  4. Step 4: Simplify right side
    389,022,723.32x = 112,956,844,572,760,784
  5. Step 5: Solve for x
    x = 112,956,844,572,760,784/389,022,723.32
  6. Step 6: Final answer
    x = 290,360,531.15

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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.