Home / 810,018,037.78-1,215,018,199.26-196,602,263.54

Finding the Fourth Proportional to 810,018,037.78, 1,215,018,199.26 and 196,602,263.54

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Solution

The fourth proportional to 810,018,037.78, 1,215,018,199.26 and 196,602,263.54 is: 294,901,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,018,037.78 : 1,215,018,199.26 = 196,602,263.54 : x
  2. Step 2: Convert to fraction form
    810,018,037.78/1,215,018,199.26 = 196,602,263.54/x
  3. Step 3: Cross multiply
    810,018,037.78x = 1,215,018,199.26 × 196,602,263.54
  4. Step 4: Simplify right side
    810,018,037.78x = 238,875,328,216,810,752
  5. Step 5: Solve for x
    x = 238,875,328,216,810,752/810,018,037.78
  6. Step 6: Final answer
    x = 294,901,245.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.