Home / 123,390,004.49-170,178,919.56-108,473,435.67

Finding the Fourth Proportional to 123,390,004.49, 170,178,919.56 and 108,473,435.67

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Solution

The fourth proportional to 123,390,004.49, 170,178,919.56 and 108,473,435.67 is: 149,606,057.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,390,004.49 : 170,178,919.56 = 108,473,435.67 : x
  2. Step 2: Convert to fraction form
    123,390,004.49/170,178,919.56 = 108,473,435.67/x
  3. Step 3: Cross multiply
    123,390,004.49x = 170,178,919.56 × 108,473,435.67
  4. Step 4: Simplify right side
    123,390,004.49x = 18,459,892,082,657,632
  5. Step 5: Solve for x
    x = 18,459,892,082,657,632/123,390,004.49
  6. Step 6: Final answer
    x = 149,606,057.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.