Home / 662,252,825.13-913,621,733.46-394,178,342.40

Finding the Fourth Proportional to 662,252,825.13, 913,621,733.46 and 394,178,342.40

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Solution

The fourth proportional to 662,252,825.13, 913,621,733.46 and 394,178,342.40 is: 543,795,189.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,252,825.13 : 913,621,733.46 = 394,178,342.40 : x
  2. Step 2: Convert to fraction form
    662,252,825.13/913,621,733.46 = 394,178,342.40/x
  3. Step 3: Cross multiply
    662,252,825.13x = 913,621,733.46 × 394,178,342.40
  4. Step 4: Simplify right side
    662,252,825.13x = 360,129,900,475,877,440
  5. Step 5: Solve for x
    x = 360,129,900,475,877,440/662,252,825.13
  6. Step 6: Final answer
    x = 543,795,189.41

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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.