Home / 419,406,439.02-578,784,724.47-231,241,486.11

Finding the Fourth Proportional to 419,406,439.02, 578,784,724.47 and 231,241,486.11

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Solution

The fourth proportional to 419,406,439.02, 578,784,724.47 and 231,241,486.11 is: 319,115,367.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,406,439.02 : 578,784,724.47 = 231,241,486.11 : x
  2. Step 2: Convert to fraction form
    419,406,439.02/578,784,724.47 = 231,241,486.11/x
  3. Step 3: Cross multiply
    419,406,439.02x = 578,784,724.47 × 231,241,486.11
  4. Step 4: Simplify right side
    419,406,439.02x = 133,839,039,824,209,696
  5. Step 5: Solve for x
    x = 133,839,039,824,209,696/419,406,439.02
  6. Step 6: Final answer
    x = 319,115,367.27

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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.