Home / 118,064,684.52-162,981,509.06-76,269,128.81

Finding the Fourth Proportional to 118,064,684.52, 162,981,509.06 and 76,269,128.81

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Solution

The fourth proportional to 118,064,684.52, 162,981,509.06 and 76,269,128.81 is: 105,285,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,064,684.52 : 162,981,509.06 = 76,269,128.81 : x
  2. Step 2: Convert to fraction form
    118,064,684.52/162,981,509.06 = 76,269,128.81/x
  3. Step 3: Cross multiply
    118,064,684.52x = 162,981,509.06 × 76,269,128.81
  4. Step 4: Simplify right side
    118,064,684.52x = 12,430,457,707,521,088
  5. Step 5: Solve for x
    x = 12,430,457,707,521,088/118,064,684.52
  6. Step 6: Final answer
    x = 105,285,147.36

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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.