Home / 20,556,898,669.41-28,377,815,525.25-12,947,128,228.14

Finding the Fourth Proportional to 20,556,898,669.41, 28,377,815,525.25 and 12,947,128,228.14

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Solution

The fourth proportional to 20,556,898,669.41, 28,377,815,525.25 and 12,947,128,228.14 is: 17,872,891,351.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556,898,669.41 : 28,377,815,525.25 = 12,947,128,228.14 : x
  2. Step 2: Convert to fraction form
    20,556,898,669.41/28,377,815,525.25 = 12,947,128,228.14/x
  3. Step 3: Cross multiply
    20,556,898,669.41x = 28,377,815,525.25 × 12,947,128,228.14
  4. Step 4: Simplify right side
    20,556,898,669.41x = 367,411,216,439,776,837,632
  5. Step 5: Solve for x
    x = 367,411,216,439,776,837,632/20,556,898,669.41
  6. Step 6: Final answer
    x = 17,872,891,351.38

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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.