Home / 1,128,171,307.43-1,556,925,028.65-626,380,115.87

Finding the Fourth Proportional to 1,128,171,307.43, 1,556,925,028.65 and 626,380,115.87

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Solution

The fourth proportional to 1,128,171,307.43, 1,556,925,028.65 and 626,380,115.87 is: 864,431,557.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,171,307.43 : 1,556,925,028.65 = 626,380,115.87 : x
  2. Step 2: Convert to fraction form
    1,128,171,307.43/1,556,925,028.65 = 626,380,115.87/x
  3. Step 3: Cross multiply
    1,128,171,307.43x = 1,556,925,028.65 × 626,380,115.87
  4. Step 4: Simplify right side
    1,128,171,307.43x = 975,226,879,850,582,400
  5. Step 5: Solve for x
    x = 975,226,879,850,582,400/1,128,171,307.43
  6. Step 6: Final answer
    x = 864,431,557.00

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Double scale
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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.