Home / 385,643,457.96-578,387,843.22-188,822,069.88

Finding the Fourth Proportional to 385,643,457.96, 578,387,843.22 and 188,822,069.88

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Solution

The fourth proportional to 385,643,457.96, 578,387,843.22 and 188,822,069.88 is: 283,195,235.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,643,457.96 : 578,387,843.22 = 188,822,069.88 : x
  2. Step 2: Convert to fraction form
    385,643,457.96/578,387,843.22 = 188,822,069.88/x
  3. Step 3: Cross multiply
    385,643,457.96x = 578,387,843.22 × 188,822,069.88
  4. Step 4: Simplify right side
    385,643,457.96x = 109,212,389,750,229,328
  5. Step 5: Solve for x
    x = 109,212,389,750,229,328/385,643,457.96
  6. Step 6: Final answer
    x = 283,195,235.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.