Home / 30,730,598.29-42,408,138.58-16,979,464.45

Finding the Fourth Proportional to 30,730,598.29, 42,408,138.58 and 16,979,464.45

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Solution

The fourth proportional to 30,730,598.29, 42,408,138.58 and 16,979,464.45 is: 23,431,612.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,730,598.29 : 42,408,138.58 = 16,979,464.45 : x
  2. Step 2: Convert to fraction form
    30,730,598.29/42,408,138.58 = 16,979,464.45/x
  3. Step 3: Cross multiply
    30,730,598.29x = 42,408,138.58 × 16,979,464.45
  4. Step 4: Simplify right side
    30,730,598.29x = 720,067,481,409,783.38
  5. Step 5: Solve for x
    x = 720,067,481,409,783.38/30,730,598.29
  6. Step 6: Final answer
    x = 23,431,612.84

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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.