Home / 142,484,062.91-196,628,385.33-77,293,966.91

Finding the Fourth Proportional to 142,484,062.91, 196,628,385.33 and 77,293,966.91

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Solution

The fourth proportional to 142,484,062.91, 196,628,385.33 and 77,293,966.91 is: 106,665,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,484,062.91 : 196,628,385.33 = 77,293,966.91 : x
  2. Step 2: Convert to fraction form
    142,484,062.91/196,628,385.33 = 77,293,966.91/x
  3. Step 3: Cross multiply
    142,484,062.91x = 196,628,385.33 × 77,293,966.91
  4. Step 4: Simplify right side
    142,484,062.91x = 15,198,187,908,280,608
  5. Step 5: Solve for x
    x = 15,198,187,908,280,608/142,484,062.91
  6. Step 6: Final answer
    x = 106,665,879.67

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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.