Home / 870,323,220.84-1,305,626,636.40-256,969,448.04

Finding the Fourth Proportional to 870,323,220.84, 1,305,626,636.40 and 256,969,448.04

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Solution

The fourth proportional to 870,323,220.84, 1,305,626,636.40 and 256,969,448.04 is: 385,496,041.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,323,220.84 : 1,305,626,636.40 = 256,969,448.04 : x
  2. Step 2: Convert to fraction form
    870,323,220.84/1,305,626,636.40 = 256,969,448.04/x
  3. Step 3: Cross multiply
    870,323,220.84x = 1,305,626,636.40 × 256,969,448.04
  4. Step 4: Simplify right side
    870,323,220.84x = 335,506,156,102,029,760
  5. Step 5: Solve for x
    x = 335,506,156,102,029,760/870,323,220.84
  6. Step 6: Final answer
    x = 385,496,041.09

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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.