Home / 130,824,326.38-180,529,435.86-72,083,704.31

Finding the Fourth Proportional to 130,824,326.38, 180,529,435.86 and 72,083,704.31

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Solution

The fourth proportional to 130,824,326.38, 180,529,435.86 and 72,083,704.31 is: 99,471,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,824,326.38 : 180,529,435.86 = 72,083,704.31 : x
  2. Step 2: Convert to fraction form
    130,824,326.38/180,529,435.86 = 72,083,704.31/x
  3. Step 3: Cross multiply
    130,824,326.38x = 180,529,435.86 × 72,083,704.31
  4. Step 4: Simplify right side
    130,824,326.38x = 13,013,230,473,783,352
  5. Step 5: Solve for x
    x = 13,013,230,473,783,352/130,824,326.38
  6. Step 6: Final answer
    x = 99,471,029.84

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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.