Home / 455,521,838.16-628,620,742.90-246,678,340.98

Finding the Fourth Proportional to 455,521,838.16, 628,620,742.90 and 246,678,340.98

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Solution

The fourth proportional to 455,521,838.16, 628,620,742.90 and 246,678,340.98 is: 340,416,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,521,838.16 : 628,620,742.90 = 246,678,340.98 : x
  2. Step 2: Convert to fraction form
    455,521,838.16/628,620,742.90 = 246,678,340.98/x
  3. Step 3: Cross multiply
    455,521,838.16x = 628,620,742.90 × 246,678,340.98
  4. Step 4: Simplify right side
    455,521,838.16x = 155,067,121,962,953,696
  5. Step 5: Solve for x
    x = 155,067,121,962,953,696/455,521,838.16
  6. Step 6: Final answer
    x = 340,416,438.85

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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.