Home / 128,111,761.79-192,127,903.43-46,219,993.93

Finding the Fourth Proportional to 128,111,761.79, 192,127,903.43 and 46,219,993.93

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Solution

The fourth proportional to 128,111,761.79, 192,127,903.43 and 46,219,993.93 is: 69,315,653.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,111,761.79 : 192,127,903.43 = 46,219,993.93 : x
  2. Step 2: Convert to fraction form
    128,111,761.79/192,127,903.43 = 46,219,993.93/x
  3. Step 3: Cross multiply
    128,111,761.79x = 192,127,903.43 × 46,219,993.93
  4. Step 4: Simplify right side
    128,111,761.79x = 8,880,150,529,953,457
  5. Step 5: Solve for x
    x = 8,880,150,529,953,457/128,111,761.79
  6. Step 6: Final answer
    x = 69,315,653.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.