Home / 866,144,639.25-1,298,698,110.42-275,679,826.80

Finding the Fourth Proportional to 866,144,639.25, 1,298,698,110.42 and 275,679,826.80

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Solution

The fourth proportional to 866,144,639.25, 1,298,698,110.42 and 275,679,826.80 is: 413,354,599.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,144,639.25 : 1,298,698,110.42 = 275,679,826.80 : x
  2. Step 2: Convert to fraction form
    866,144,639.25/1,298,698,110.42 = 275,679,826.80/x
  3. Step 3: Cross multiply
    866,144,639.25x = 1,298,698,110.42 × 275,679,826.80
  4. Step 4: Simplify right side
    866,144,639.25x = 358,024,870,146,072,896
  5. Step 5: Solve for x
    x = 358,024,870,146,072,896/866,144,639.25
  6. Step 6: Final answer
    x = 413,354,599.13

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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.