Home / 139,885,263.36-193,042,919.52-77,163,762.24

Finding the Fourth Proportional to 139,885,263.36, 193,042,919.52 and 77,163,762.24

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Solution

The fourth proportional to 139,885,263.36, 193,042,919.52 and 77,163,762.24 is: 106,486,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,885,263.36 : 193,042,919.52 = 77,163,762.24 : x
  2. Step 2: Convert to fraction form
    139,885,263.36/193,042,919.52 = 77,163,762.24/x
  3. Step 3: Cross multiply
    139,885,263.36x = 193,042,919.52 × 77,163,762.24
  4. Step 4: Simplify right side
    139,885,263.36x = 14,895,917,943,956,734
  5. Step 5: Solve for x
    x = 14,895,917,943,956,734/139,885,263.36
  6. Step 6: Final answer
    x = 106,486,684.77

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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.