Home / 495,492,141.78-683,611,790.40-280,887,763.50

Finding the Fourth Proportional to 495,492,141.78, 683,611,790.40 and 280,887,763.50

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Solution

The fourth proportional to 495,492,141.78, 683,611,790.40 and 280,887,763.50 is: 387,530,236.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,492,141.78 : 683,611,790.40 = 280,887,763.50 : x
  2. Step 2: Convert to fraction form
    495,492,141.78/683,611,790.40 = 280,887,763.50/x
  3. Step 3: Cross multiply
    495,492,141.78x = 683,611,790.40 × 280,887,763.50
  4. Step 4: Simplify right side
    495,492,141.78x = 192,018,186,907,686,752
  5. Step 5: Solve for x
    x = 192,018,186,907,686,752/495,492,141.78
  6. Step 6: Final answer
    x = 387,530,236.54

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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.