Home / 73,124,429.40-109,686,644.10-18,536,909.40

Finding the Fourth Proportional to 73,124,429.40, 109,686,644.10 and 18,536,909.40

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Solution

The fourth proportional to 73,124,429.40, 109,686,644.10 and 18,536,909.40 is: 27,805,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,124,429.40 : 109,686,644.10 = 18,536,909.40 : x
  2. Step 2: Convert to fraction form
    73,124,429.40/109,686,644.10 = 18,536,909.40/x
  3. Step 3: Cross multiply
    73,124,429.40x = 109,686,644.10 × 18,536,909.40
  4. Step 4: Simplify right side
    73,124,429.40x = 2,033,251,384,071,744.25
  5. Step 5: Solve for x
    x = 2,033,251,384,071,744.25/73,124,429.40
  6. Step 6: Final answer
    x = 27,805,364.10

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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.