Home / 130,824,284.03-180,529,377.42-72,083,661.97

Finding the Fourth Proportional to 130,824,284.03, 180,529,377.42 and 72,083,661.97

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Solution

The fourth proportional to 130,824,284.03, 180,529,377.42 and 72,083,661.97 is: 99,470,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,824,284.03 : 180,529,377.42 = 72,083,661.97 : x
  2. Step 2: Convert to fraction form
    130,824,284.03/180,529,377.42 = 72,083,661.97/x
  3. Step 3: Cross multiply
    130,824,284.03x = 180,529,377.42 × 72,083,661.97
  4. Step 4: Simplify right side
    130,824,284.03x = 13,013,218,617,553,478
  5. Step 5: Solve for x
    x = 13,013,218,617,553,478/130,824,284.03
  6. Step 6: Final answer
    x = 99,470,971.41

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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.