Home / 870,061,056.39-1,305,078,806.03-215,012,065.01

Finding the Fourth Proportional to 870,061,056.39, 1,305,078,806.03 and 215,012,065.01

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Solution

The fourth proportional to 870,061,056.39, 1,305,078,806.03 and 215,012,065.01 is: 322,514,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,061,056.39 : 1,305,078,806.03 = 215,012,065.01 : x
  2. Step 2: Convert to fraction form
    870,061,056.39/1,305,078,806.03 = 215,012,065.01/x
  3. Step 3: Cross multiply
    870,061,056.39x = 1,305,078,806.03 × 215,012,065.01
  4. Step 4: Simplify right side
    870,061,056.39x = 280,607,689,077,695,104
  5. Step 5: Solve for x
    x = 280,607,689,077,695,104/870,061,056.39
  6. Step 6: Final answer
    x = 322,514,939.63

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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.