Home / 145,633,727.80-218,303,625.30-72,738,393.40

Finding the Fourth Proportional to 145,633,727.80, 218,303,625.30 and 72,738,393.40

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Solution

The fourth proportional to 145,633,727.80, 218,303,625.30 and 72,738,393.40 is: 109,034,186.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,633,727.80 : 218,303,625.30 = 72,738,393.40 : x
  2. Step 2: Convert to fraction form
    145,633,727.80/218,303,625.30 = 72,738,393.40/x
  3. Step 3: Cross multiply
    145,633,727.80x = 218,303,625.30 × 72,738,393.40
  4. Step 4: Simplify right side
    145,633,727.80x = 15,879,054,977,717,596
  5. Step 5: Solve for x
    x = 15,879,054,977,717,596/145,633,727.80
  6. Step 6: Final answer
    x = 109,034,186.09

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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.