Home / 20,370,860,529.48-28,111,788,882.52-11,338,424,794.76

Finding the Fourth Proportional to 20,370,860,529.48, 28,111,788,882.52 and 11,338,424,794.76

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Solution

The fourth proportional to 20,370,860,529.48, 28,111,788,882.52 and 11,338,424,794.76 is: 15,647,026,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370,860,529.48 : 28,111,788,882.52 = 11,338,424,794.76 : x
  2. Step 2: Convert to fraction form
    20,370,860,529.48/28,111,788,882.52 = 11,338,424,794.76/x
  3. Step 3: Cross multiply
    20,370,860,529.48x = 28,111,788,882.52 × 11,338,424,794.76
  4. Step 4: Simplify right side
    20,370,860,529.48x = 318,743,404,090,460,012,544
  5. Step 5: Solve for x
    x = 318,743,404,090,460,012,544/20,370,860,529.48
  6. Step 6: Final answer
    x = 15,647,026,969.19

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Double scale
Find fourth proportional to 20,370,860,530.48, 28,111,788,883.90 and 11,338,424,795.76
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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.