Home / 84,150,390.24-126,303,178.36-42,680,371.54

Finding the Fourth Proportional to 84,150,390.24, 126,303,178.36 and 42,680,371.54

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Solution

The fourth proportional to 84,150,390.24, 126,303,178.36 and 42,680,371.54 is: 64,059,911.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,150,390.24 : 126,303,178.36 = 42,680,371.54 : x
  2. Step 2: Convert to fraction form
    84,150,390.24/126,303,178.36 = 42,680,371.54/x
  3. Step 3: Cross multiply
    84,150,390.24x = 126,303,178.36 × 42,680,371.54
  4. Step 4: Simplify right side
    84,150,390.24x = 5,390,666,579,087,688
  5. Step 5: Solve for x
    x = 5,390,666,579,087,688/84,150,390.24
  6. Step 6: Final answer
    x = 64,059,911.83

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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.