Home / 30,809,475.38-42,518,404.35-17,058,439.51

Finding the Fourth Proportional to 30,809,475.38, 42,518,404.35 and 17,058,439.51

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Solution

The fourth proportional to 30,809,475.38, 42,518,404.35 and 17,058,439.51 is: 23,541,381.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,809,475.38 : 42,518,404.35 = 17,058,439.51 : x
  2. Step 2: Convert to fraction form
    30,809,475.38/42,518,404.35 = 17,058,439.51/x
  3. Step 3: Cross multiply
    30,809,475.38x = 42,518,404.35 × 17,058,439.51
  4. Step 4: Simplify right side
    30,809,475.38x = 725,297,628,559,899.88
  5. Step 5: Solve for x
    x = 725,297,628,559,899.88/30,809,475.38
  6. Step 6: Final answer
    x = 23,541,381.98

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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.