Home / 271,870,784.40-407,806,176.60-77,788,531.20

Finding the Fourth Proportional to 271,870,784.40, 407,806,176.60 and 77,788,531.20

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Solution

The fourth proportional to 271,870,784.40, 407,806,176.60 and 77,788,531.20 is: 116,682,796.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,870,784.40 : 407,806,176.60 = 77,788,531.20 : x
  2. Step 2: Convert to fraction form
    271,870,784.40/407,806,176.60 = 77,788,531.20/x
  3. Step 3: Cross multiply
    271,870,784.40x = 407,806,176.60 × 77,788,531.20
  4. Step 4: Simplify right side
    271,870,784.40x = 31,722,643,492,001,812
  5. Step 5: Solve for x
    x = 31,722,643,492,001,812/271,870,784.40
  6. Step 6: Final answer
    x = 116,682,796.80

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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.