Home / 130,824,284.94-180,529,378.67-72,083,662.88

Finding the Fourth Proportional to 130,824,284.94, 180,529,378.67 and 72,083,662.88

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Solution

The fourth proportional to 130,824,284.94, 180,529,378.67 and 72,083,662.88 is: 99,470,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,824,284.94 : 180,529,378.67 = 72,083,662.88 : x
  2. Step 2: Convert to fraction form
    130,824,284.94/180,529,378.67 = 72,083,662.88/x
  3. Step 3: Cross multiply
    130,824,284.94x = 180,529,378.67 × 72,083,662.88
  4. Step 4: Simplify right side
    130,824,284.94x = 13,013,218,871,081,494
  5. Step 5: Solve for x
    x = 13,013,218,871,081,494/130,824,284.94
  6. Step 6: Final answer
    x = 99,470,972.66

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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.