Home / 459,571,891.20-689,357,836.80-314,453,068.80

Finding the Fourth Proportional to 459,571,891.20, 689,357,836.80 and 314,453,068.80

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Solution

The fourth proportional to 459,571,891.20, 689,357,836.80 and 314,453,068.80 is: 471,679,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,571,891.20 : 689,357,836.80 = 314,453,068.80 : x
  2. Step 2: Convert to fraction form
    459,571,891.20/689,357,836.80 = 314,453,068.80/x
  3. Step 3: Cross multiply
    459,571,891.20x = 689,357,836.80 × 314,453,068.80
  4. Step 4: Simplify right side
    459,571,891.20x = 216,770,687,283,089,568
  5. Step 5: Solve for x
    x = 216,770,687,283,089,568/459,571,891.20
  6. Step 6: Final answer
    x = 471,679,603.20

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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.