Home / 929,919,814.90-1,283,289,414.71-512,232,100.19

Finding the Fourth Proportional to 929,919,814.90, 1,283,289,414.71 and 512,232,100.19

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Solution

The fourth proportional to 929,919,814.90, 1,283,289,414.71 and 512,232,100.19 is: 706,880,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,919,814.90 : 1,283,289,414.71 = 512,232,100.19 : x
  2. Step 2: Convert to fraction form
    929,919,814.90/1,283,289,414.71 = 512,232,100.19/x
  3. Step 3: Cross multiply
    929,919,814.90x = 1,283,289,414.71 × 512,232,100.19
  4. Step 4: Simplify right side
    929,919,814.90x = 657,342,032,048,499,200
  5. Step 5: Solve for x
    x = 657,342,032,048,499,200/929,919,814.90
  6. Step 6: Final answer
    x = 706,880,336.90

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1.5x scale

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.