Home / 445,377,420-668,162,231.28-134,459,240.40

Finding the Fourth Proportional to 445,377,420, 668,162,231.28 and 134,459,240.40

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Solution

The fourth proportional to 445,377,420, 668,162,231.28 and 134,459,240.40 is: 201,717,873.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,377,420 : 668,162,231.28 = 134,459,240.40 : x
  2. Step 2: Convert to fraction form
    445,377,420/668,162,231.28 = 134,459,240.40/x
  3. Step 3: Cross multiply
    445,377,420x = 668,162,231.28 × 134,459,240.40
  4. Step 4: Simplify right side
    445,377,420x = 89,840,586,081,877,920
  5. Step 5: Solve for x
    x = 89,840,586,081,877,920/445,377,420
  6. Step 6: Final answer
    x = 201,717,873.53

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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.