Home / 77,679,790.04-107,197,582.44-42,872,479.76

Finding the Fourth Proportional to 77,679,790.04, 107,197,582.44 and 42,872,479.76

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Solution

The fourth proportional to 77,679,790.04, 107,197,582.44 and 42,872,479.76 is: 59,163,730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,679,790.04 : 107,197,582.44 = 42,872,479.76 : x
  2. Step 2: Convert to fraction form
    77,679,790.04/107,197,582.44 = 42,872,479.76/x
  3. Step 3: Cross multiply
    77,679,790.04x = 107,197,582.44 × 42,872,479.76
  4. Step 4: Simplify right side
    77,679,790.04x = 4,595,826,183,479,831
  5. Step 5: Solve for x
    x = 4,595,826,183,479,831/77,679,790.04
  6. Step 6: Final answer
    x = 59,163,730.76

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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.