Home / 870,965,998.65-1,306,448,997.98-353,644,270.65

Finding the Fourth Proportional to 870,965,998.65, 1,306,448,997.98 and 353,644,270.65

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Solution

The fourth proportional to 870,965,998.65, 1,306,448,997.98 and 353,644,270.65 is: 530,466,405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,965,998.65 : 1,306,448,997.98 = 353,644,270.65 : x
  2. Step 2: Convert to fraction form
    870,965,998.65/1,306,448,997.98 = 353,644,270.65/x
  3. Step 3: Cross multiply
    870,965,998.65x = 1,306,448,997.98 × 353,644,270.65
  4. Step 4: Simplify right side
    870,965,998.65x = 462,018,203,030,292,160
  5. Step 5: Solve for x
    x = 462,018,203,030,292,160/870,965,998.65
  6. Step 6: Final answer
    x = 530,466,405.98

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Double scale
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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.