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Finding the Fourth Proportional to 459,651,307.60, 689,476,961.40 and 368,952,043.60

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Solution

The fourth proportional to 459,651,307.60, 689,476,961.40 and 368,952,043.60 is: 553,428,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,651,307.60 : 689,476,961.40 = 368,952,043.60 : x
  2. Step 2: Convert to fraction form
    459,651,307.60/689,476,961.40 = 368,952,043.60/x
  3. Step 3: Cross multiply
    459,651,307.60x = 689,476,961.40 × 368,952,043.60
  4. Step 4: Simplify right side
    459,651,307.60x = 254,383,933,923,648,320
  5. Step 5: Solve for x
    x = 254,383,933,923,648,320/459,651,307.60
  6. Step 6: Final answer
    x = 553,428,065.40

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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.