Home / 28,920,121,138.56-39,907,576,930.24-16,230,406,008.32

Finding the Fourth Proportional to 28,920,121,138.56, 39,907,576,930.24 and 16,230,406,008.32

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Solution

The fourth proportional to 28,920,121,138.56, 39,907,576,930.24 and 16,230,406,008.32 is: 22,396,731,095.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920,121,138.56 : 39,907,576,930.24 = 16,230,406,008.32 : x
  2. Step 2: Convert to fraction form
    28,920,121,138.56/39,907,576,930.24 = 16,230,406,008.32/x
  3. Step 3: Cross multiply
    28,920,121,138.56x = 39,907,576,930.24 × 16,230,406,008.32
  4. Step 4: Simplify right side
    28,920,121,138.56x = 647,716,176,386,059,927,552
  5. Step 5: Solve for x
    x = 647,716,176,386,059,927,552/28,920,121,138.56
  6. Step 6: Final answer
    x = 22,396,731,095.38

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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.