Home / 21,081,948,762.45-31,621,809,403.02-6,915,048,399.44

Finding the Fourth Proportional to 21,081,948,762.45, 31,621,809,403.02 and 6,915,048,399.44

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Solution

The fourth proportional to 21,081,948,762.45, 31,621,809,403.02 and 6,915,048,399.44 is: 10,372,207,283.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081,948,762.45 : 31,621,809,403.02 = 6,915,048,399.44 : x
  2. Step 2: Convert to fraction form
    21,081,948,762.45/31,621,809,403.02 = 6,915,048,399.44/x
  3. Step 3: Cross multiply
    21,081,948,762.45x = 31,621,809,403.02 × 6,915,048,399.44
  4. Step 4: Simplify right side
    21,081,948,762.45x = 218,666,342,499,592,110,080
  5. Step 5: Solve for x
    x = 218,666,342,499,592,110,080/21,081,948,762.45
  6. Step 6: Final answer
    x = 10,372,207,283.28

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1.5x scale

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.