Home / 1,065,312,076.80-1,597,968,115.20-299,407,180.80

Finding the Fourth Proportional to 1,065,312,076.80, 1,597,968,115.20 and 299,407,180.80

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Solution

The fourth proportional to 1,065,312,076.80, 1,597,968,115.20 and 299,407,180.80 is: 449,110,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,312,076.80 : 1,597,968,115.20 = 299,407,180.80 : x
  2. Step 2: Convert to fraction form
    1,065,312,076.80/1,597,968,115.20 = 299,407,180.80/x
  3. Step 3: Cross multiply
    1,065,312,076.80x = 1,597,968,115.20 × 299,407,180.80
  4. Step 4: Simplify right side
    1,065,312,076.80x = 478,443,128,380,321,664
  5. Step 5: Solve for x
    x = 478,443,128,380,321,664/1,065,312,076.80
  6. Step 6: Final answer
    x = 449,110,771.20

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Double scale
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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.