Home / 720,200,416.73-993,877,583.57-390,175,555.73

Finding the Fourth Proportional to 720,200,416.73, 993,877,583.57 and 390,175,555.73

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Solution

The fourth proportional to 720,200,416.73, 993,877,583.57 and 390,175,555.73 is: 538,442,813.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,200,416.73 : 993,877,583.57 = 390,175,555.73 : x
  2. Step 2: Convert to fraction form
    720,200,416.73/993,877,583.57 = 390,175,555.73/x
  3. Step 3: Cross multiply
    720,200,416.73x = 993,877,583.57 × 390,175,555.73
  4. Step 4: Simplify right side
    720,200,416.73x = 387,786,738,490,094,016
  5. Step 5: Solve for x
    x = 387,786,738,490,094,016/720,200,416.73
  6. Step 6: Final answer
    x = 538,442,813.26

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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.