Home / 21,104,880,378.36-31,658,338,722.96-6,939,532,518.42

Finding the Fourth Proportional to 21,104,880,378.36, 31,658,338,722.96 and 6,939,532,518.42

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Solution

The fourth proportional to 21,104,880,378.36, 31,658,338,722.96 and 6,939,532,518.42 is: 10,409,633,559.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104,880,378.36 : 31,658,338,722.96 = 6,939,532,518.42 : x
  2. Step 2: Convert to fraction form
    21,104,880,378.36/31,658,338,722.96 = 6,939,532,518.42/x
  3. Step 3: Cross multiply
    21,104,880,378.36x = 31,658,338,722.96 × 6,939,532,518.42
  4. Step 4: Simplify right side
    21,104,880,378.36x = 219,694,071,047,136,018,432
  5. Step 5: Solve for x
    x = 219,694,071,047,136,018,432/21,104,880,378.36
  6. Step 6: Final answer
    x = 10,409,633,559.09

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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.