Home / 459,968,418.40-689,952,627.60-296,709,743.20

Finding the Fourth Proportional to 459,968,418.40, 689,952,627.60 and 296,709,743.20

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Solution

The fourth proportional to 459,968,418.40, 689,952,627.60 and 296,709,743.20 is: 445,064,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,968,418.40 : 689,952,627.60 = 296,709,743.20 : x
  2. Step 2: Convert to fraction form
    459,968,418.40/689,952,627.60 = 296,709,743.20/x
  3. Step 3: Cross multiply
    459,968,418.40x = 689,952,627.60 × 296,709,743.20
  4. Step 4: Simplify right side
    459,968,418.40x = 204,715,666,955,361,216
  5. Step 5: Solve for x
    x = 204,715,666,955,361,216/459,968,418.40
  6. Step 6: Final answer
    x = 445,064,614.80

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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.