Home / 505,596,800.40-758,395,200.60-352,415,821.20

Finding the Fourth Proportional to 505,596,800.40, 758,395,200.60 and 352,415,821.20

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Solution

The fourth proportional to 505,596,800.40, 758,395,200.60 and 352,415,821.20 is: 528,623,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,596,800.40 : 758,395,200.60 = 352,415,821.20 : x
  2. Step 2: Convert to fraction form
    505,596,800.40/758,395,200.60 = 352,415,821.20/x
  3. Step 3: Cross multiply
    505,596,800.40x = 758,395,200.60 × 352,415,821.20
  4. Step 4: Simplify right side
    505,596,800.40x = 267,270,467,413,587,744
  5. Step 5: Solve for x
    x = 267,270,467,413,587,744/505,596,800.40
  6. Step 6: Final answer
    x = 528,623,731.80

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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.