Home / 28,075,472,478.54-38,745,089,003.07-15,388,240,653.68

Finding the Fourth Proportional to 28,075,472,478.54, 38,745,089,003.07 and 15,388,240,653.68

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Solution

The fourth proportional to 28,075,472,478.54, 38,745,089,003.07 and 15,388,240,653.68 is: 21,236,285,664.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075,472,478.54 : 38,745,089,003.07 = 15,388,240,653.68 : x
  2. Step 2: Convert to fraction form
    28,075,472,478.54/38,745,089,003.07 = 15,388,240,653.68/x
  3. Step 3: Cross multiply
    28,075,472,478.54x = 38,745,089,003.07 × 15,388,240,653.68
  4. Step 4: Simplify right side
    28,075,472,478.54x = 596,218,753,727,297,880,064
  5. Step 5: Solve for x
    x = 596,218,753,727,297,880,064/28,075,472,478.54
  6. Step 6: Final answer
    x = 21,236,285,664.76

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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.