Home / 642,418,530.45-886,459,194.32-360,095,813.61

Finding the Fourth Proportional to 642,418,530.45, 886,459,194.32 and 360,095,813.61

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Solution

The fourth proportional to 642,418,530.45, 886,459,194.32 and 360,095,813.61 is: 496,888,289.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,418,530.45 : 886,459,194.32 = 360,095,813.61 : x
  2. Step 2: Convert to fraction form
    642,418,530.45/886,459,194.32 = 360,095,813.61/x
  3. Step 3: Cross multiply
    642,418,530.45x = 886,459,194.32 × 360,095,813.61
  4. Step 4: Simplify right side
    642,418,530.45x = 319,210,244,808,925,056
  5. Step 5: Solve for x
    x = 319,210,244,808,925,056/642,418,530.45
  6. Step 6: Final answer
    x = 496,888,289.61

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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.