Home / 130,824,284.54-180,529,378.11-72,083,662.47

Finding the Fourth Proportional to 130,824,284.54, 180,529,378.11 and 72,083,662.47

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Solution

The fourth proportional to 130,824,284.54, 180,529,378.11 and 72,083,662.47 is: 99,470,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,824,284.54 : 180,529,378.11 = 72,083,662.47 : x
  2. Step 2: Convert to fraction form
    130,824,284.54/180,529,378.11 = 72,083,662.47/x
  3. Step 3: Cross multiply
    130,824,284.54x = 180,529,378.11 × 72,083,662.47
  4. Step 4: Simplify right side
    130,824,284.54x = 13,013,218,757,600,248
  5. Step 5: Solve for x
    x = 13,013,218,757,600,248/130,824,284.54
  6. Step 6: Final answer
    x = 99,470,972.10

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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.