Home / 28,680,333,649.83-39,578,898,563.19-15,819,685,195.32

Finding the Fourth Proportional to 28,680,333,649.83, 39,578,898,563.19 and 15,819,685,195.32

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Solution

The fourth proportional to 28,680,333,649.83, 39,578,898,563.19 and 15,819,685,195.32 is: 21,831,186,599.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680,333,649.83 : 39,578,898,563.19 = 15,819,685,195.32 : x
  2. Step 2: Convert to fraction form
    28,680,333,649.83/39,578,898,563.19 = 15,819,685,195.32/x
  3. Step 3: Cross multiply
    28,680,333,649.83x = 39,578,898,563.19 × 15,819,685,195.32
  4. Step 4: Simplify right side
    28,680,333,649.83x = 626,125,715,647,168,905,216
  5. Step 5: Solve for x
    x = 626,125,715,647,168,905,216/28,680,333,649.83
  6. Step 6: Final answer
    x = 21,831,186,599.56

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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.