Home / 66,879,566,819.12-100,328,774,032.17-21,485,053,481.45

Finding the Fourth Proportional to 66,879,566,819.12, 100,328,774,032.17 and 21,485,053,481.45

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Solution

The fourth proportional to 66,879,566,819.12, 100,328,774,032.17 and 21,485,053,481.45 is: 32,230,607,618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,879,566,819.12 : 100,328,774,032.17 = 21,485,053,481.45 : x
  2. Step 2: Convert to fraction form
    66,879,566,819.12/100,328,774,032.17 = 21,485,053,481.45/x
  3. Step 3: Cross multiply
    66,879,566,819.12x = 100,328,774,032.17 × 21,485,053,481.45
  4. Step 4: Simplify right side
    66,879,566,819.12x = 2,155,569,075,809,484,537,856
  5. Step 5: Solve for x
    x = 2,155,569,075,809,484,537,856/66,879,566,819.12
  6. Step 6: Final answer
    x = 32,230,607,618.01

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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.