Home / 72,768,019.40-109,152,029.10-36,382,025.60

Finding the Fourth Proportional to 72,768,019.40, 109,152,029.10 and 36,382,025.60

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Solution

The fourth proportional to 72,768,019.40, 109,152,029.10 and 36,382,025.60 is: 54,573,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768,019.40 : 109,152,029.10 = 36,382,025.60 : x
  2. Step 2: Convert to fraction form
    72,768,019.40/109,152,029.10 = 36,382,025.60/x
  3. Step 3: Cross multiply
    72,768,019.40x = 109,152,029.10 × 36,382,025.60
  4. Step 4: Simplify right side
    72,768,019.40x = 3,971,171,917,008,145
  5. Step 5: Solve for x
    x = 3,971,171,917,008,145/72,768,019.40
  6. Step 6: Final answer
    x = 54,573,038.40

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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.