Home / 130,824,284.06-180,529,377.47-72,083,662

Finding the Fourth Proportional to 130,824,284.06, 180,529,377.47 and 72,083,662

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Solution

The fourth proportional to 130,824,284.06, 180,529,377.47 and 72,083,662 is: 99,470,971.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,824,284.06 : 180,529,377.47 = 72,083,662 : x
  2. Step 2: Convert to fraction form
    130,824,284.06/180,529,377.47 = 72,083,662/x
  3. Step 3: Cross multiply
    130,824,284.06x = 180,529,377.47 × 72,083,662
  4. Step 4: Simplify right side
    130,824,284.06x = 13,013,218,626,617,896
  5. Step 5: Solve for x
    x = 13,013,218,626,617,896/130,824,284.06
  6. Step 6: Final answer
    x = 99,470,971.46

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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.