Home / 642,418,530.96-886,459,195-360,095,814.12

Finding the Fourth Proportional to 642,418,530.96, 886,459,195 and 360,095,814.12

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Solution

The fourth proportional to 642,418,530.96, 886,459,195 and 360,095,814.12 is: 496,888,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,418,530.96 : 886,459,195 = 360,095,814.12 : x
  2. Step 2: Convert to fraction form
    642,418,530.96/886,459,195 = 360,095,814.12/x
  3. Step 3: Cross multiply
    642,418,530.96x = 886,459,195 × 360,095,814.12
  4. Step 4: Simplify right side
    642,418,530.96x = 319,210,245,507,684,864
  5. Step 5: Solve for x
    x = 319,210,245,507,684,864/642,418,530.96
  6. Step 6: Final answer
    x = 496,888,290.30

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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.