Home / 524,416,535.40-723,694,889.70-289,467,240.21

Finding the Fourth Proportional to 524,416,535.40, 723,694,889.70 and 289,467,240.21

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Solution

The fourth proportional to 524,416,535.40, 723,694,889.70 and 289,467,240.21 is: 399,464,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,416,535.40 : 723,694,889.70 = 289,467,240.21 : x
  2. Step 2: Convert to fraction form
    524,416,535.40/723,694,889.70 = 289,467,240.21/x
  3. Step 3: Cross multiply
    524,416,535.40x = 723,694,889.70 × 289,467,240.21
  4. Step 4: Simplify right side
    524,416,535.40x = 209,485,962,475,539,360
  5. Step 5: Solve for x
    x = 209,485,962,475,539,360/524,416,535.40
  6. Step 6: Final answer
    x = 399,464,830.60

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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.