Home / 210,356,506.88-315,568,663.68-64,790,020.16

Finding the Fourth Proportional to 210,356,506.88, 315,568,663.68 and 64,790,020.16

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Solution

The fourth proportional to 210,356,506.88, 315,568,663.68 and 64,790,020.16 is: 97,195,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,356,506.88 : 315,568,663.68 = 64,790,020.16 : x
  2. Step 2: Convert to fraction form
    210,356,506.88/315,568,663.68 = 64,790,020.16/x
  3. Step 3: Cross multiply
    210,356,506.88x = 315,568,663.68 × 64,790,020.16
  4. Step 4: Simplify right side
    210,356,506.88x = 20,445,700,081,691,460
  5. Step 5: Solve for x
    x = 20,445,700,081,691,460/210,356,506.88
  6. Step 6: Final answer
    x = 97,195,472.51

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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.