Home / 139,349,609.07-192,314,703.56-76,636,747.81

Finding the Fourth Proportional to 139,349,609.07, 192,314,703.56 and 76,636,747.81

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Solution

The fourth proportional to 139,349,609.07, 192,314,703.56 and 76,636,747.81 is: 105,765,445.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,349,609.07 : 192,314,703.56 = 76,636,747.81 : x
  2. Step 2: Convert to fraction form
    139,349,609.07/192,314,703.56 = 76,636,747.81/x
  3. Step 3: Cross multiply
    139,349,609.07x = 192,314,703.56 × 76,636,747.81
  4. Step 4: Simplify right side
    139,349,609.07x = 14,738,373,436,882,630
  5. Step 5: Solve for x
    x = 14,738,373,436,882,630/139,349,609.07
  6. Step 6: Final answer
    x = 105,765,445.17

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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.