Home / 148,811,112-205,378,578.72-83,621,021.76

Finding the Fourth Proportional to 148,811,112, 205,378,578.72 and 83,621,021.76

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Solution

The fourth proportional to 148,811,112, 205,378,578.72 and 83,621,021.76 is: 115,407,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,811,112 : 205,378,578.72 = 83,621,021.76 : x
  2. Step 2: Convert to fraction form
    148,811,112/205,378,578.72 = 83,621,021.76/x
  3. Step 3: Cross multiply
    148,811,112x = 205,378,578.72 × 83,621,021.76
  4. Step 4: Simplify right side
    148,811,112x = 17,173,966,600,182,994
  5. Step 5: Solve for x
    x = 17,173,966,600,182,994/148,811,112
  6. Step 6: Final answer
    x = 115,407,823.85

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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.