Home / 131,888,054,315.98-197,332,848,197.45-78,134,040,461.13

Finding the Fourth Proportional to 131,888,054,315.98, 197,332,848,197.45 and 78,134,040,461.13

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Solution

The fourth proportional to 131,888,054,315.98, 197,332,848,197.45 and 78,134,040,461.13 is: 116,905,301,434.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,888,054,315.98 : 197,332,848,197.45 = 78,134,040,461.13 : x
  2. Step 2: Convert to fraction form
    131,888,054,315.98/197,332,848,197.45 = 78,134,040,461.13/x
  3. Step 3: Cross multiply
    131,888,054,315.98x = 197,332,848,197.45 × 78,134,040,461.13
  4. Step 4: Simplify right side
    131,888,054,315.98x = 15,418,412,745,369,583,616,000
  5. Step 5: Solve for x
    x = 15,418,412,745,369,583,616,000/131,888,054,315.98
  6. Step 6: Final answer
    x = 116,905,301,434.12

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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.