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Finding the Fourth Proportional to 688,299,376.87, 949,853,276.46 and 375,033,589.82

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Solution

The fourth proportional to 688,299,376.87, 949,853,276.46 and 375,033,589.82 is: 517,546,428.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,299,376.87 : 949,853,276.46 = 375,033,589.82 : x
  2. Step 2: Convert to fraction form
    688,299,376.87/949,853,276.46 = 375,033,589.82/x
  3. Step 3: Cross multiply
    688,299,376.87x = 949,853,276.46 × 375,033,589.82
  4. Step 4: Simplify right side
    688,299,376.87x = 356,226,884,071,904,896
  5. Step 5: Solve for x
    x = 356,226,884,071,904,896/688,299,376.87
  6. Step 6: Final answer
    x = 517,546,428.26

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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.