Home / 144,093,521.90-198,846,686.58-78,013,491.86

Finding the Fourth Proportional to 144,093,521.90, 198,846,686.58 and 78,013,491.86

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Solution

The fourth proportional to 144,093,521.90, 198,846,686.58 and 78,013,491.86 is: 107,657,333.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,093,521.90 : 198,846,686.58 = 78,013,491.86 : x
  2. Step 2: Convert to fraction form
    144,093,521.90/198,846,686.58 = 78,013,491.86/x
  3. Step 3: Cross multiply
    144,093,521.90x = 198,846,686.58 × 78,013,491.86
  4. Step 4: Simplify right side
    144,093,521.90x = 15,512,724,364,896,802
  5. Step 5: Solve for x
    x = 15,512,724,364,896,802/144,093,521.90
  6. Step 6: Final answer
    x = 107,657,333.66

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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.