Home / 12,998,995.57-17,938,393.63-7,197,652.45

Finding the Fourth Proportional to 12,998,995.57, 17,938,393.63 and 7,197,652.45

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Solution

The fourth proportional to 12,998,995.57, 17,938,393.63 and 7,197,652.45 is: 9,932,638.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998,995.57 : 17,938,393.63 = 7,197,652.45 : x
  2. Step 2: Convert to fraction form
    12,998,995.57/17,938,393.63 = 7,197,652.45/x
  3. Step 3: Cross multiply
    12,998,995.57x = 17,938,393.63 × 7,197,652.45
  4. Step 4: Simplify right side
    12,998,995.57x = 129,114,322,860,033.89
  5. Step 5: Solve for x
    x = 129,114,322,860,033.89/12,998,995.57
  6. Step 6: Final answer
    x = 9,932,638.42

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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.