Home / 138,816,680.96-208,248,431.31-46,678,516.67

Finding the Fourth Proportional to 138,816,680.96, 208,248,431.31 and 46,678,516.67

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Solution

The fourth proportional to 138,816,680.96, 208,248,431.31 and 46,678,516.67 is: 70,025,646.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,816,680.96 : 208,248,431.31 = 46,678,516.67 : x
  2. Step 2: Convert to fraction form
    138,816,680.96/208,248,431.31 = 46,678,516.67/x
  3. Step 3: Cross multiply
    138,816,680.96x = 208,248,431.31 × 46,678,516.67
  4. Step 4: Simplify right side
    138,816,680.96x = 9,720,727,871,363,942
  5. Step 5: Solve for x
    x = 9,720,727,871,363,942/138,816,680.96
  6. Step 6: Final answer
    x = 70,025,646.81

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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.