Home / 77,685,357-107,205,792.72-43,346,541

Finding the Fourth Proportional to 77,685,357, 107,205,792.72 and 43,346,541

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Solution

The fourth proportional to 77,685,357, 107,205,792.72 and 43,346,541 is: 59,818,226.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,685,357 : 107,205,792.72 = 43,346,541 : x
  2. Step 2: Convert to fraction form
    77,685,357/107,205,792.72 = 43,346,541/x
  3. Step 3: Cross multiply
    77,685,357x = 107,205,792.72 × 43,346,541
  4. Step 4: Simplify right side
    77,685,357x = 4,647,000,289,574,981
  5. Step 5: Solve for x
    x = 4,647,000,289,574,981/77,685,357
  6. Step 6: Final answer
    x = 59,818,226.61

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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.