Home / 210,356,507.88-315,568,665.18-64,790,021.16

Finding the Fourth Proportional to 210,356,507.88, 315,568,665.18 and 64,790,021.16

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Solution

The fourth proportional to 210,356,507.88, 315,568,665.18 and 64,790,021.16 is: 97,195,474.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,356,507.88 : 315,568,665.18 = 64,790,021.16 : x
  2. Step 2: Convert to fraction form
    210,356,507.88/315,568,665.18 = 64,790,021.16/x
  3. Step 3: Cross multiply
    210,356,507.88x = 315,568,665.18 × 64,790,021.16
  4. Step 4: Simplify right side
    210,356,507.88x = 20,445,700,494,445,156
  5. Step 5: Solve for x
    x = 20,445,700,494,445,156/210,356,507.88
  6. Step 6: Final answer
    x = 97,195,474.01

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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.