Home / 461,981,941.60-692,972,912.40-289,989,263.20

Finding the Fourth Proportional to 461,981,941.60, 692,972,912.40 and 289,989,263.20

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Solution

The fourth proportional to 461,981,941.60, 692,972,912.40 and 289,989,263.20 is: 434,983,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,981,941.60 : 692,972,912.40 = 289,989,263.20 : x
  2. Step 2: Convert to fraction form
    461,981,941.60/692,972,912.40 = 289,989,263.20/x
  3. Step 3: Cross multiply
    461,981,941.60x = 692,972,912.40 × 289,989,263.20
  4. Step 4: Simplify right side
    461,981,941.60x = 200,954,704,284,434,144
  5. Step 5: Solve for x
    x = 200,954,704,284,434,144/461,981,941.60
  6. Step 6: Final answer
    x = 434,983,894.80

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1.5x scale

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.