Home / 207,782,485.40-311,468,150.10-98,415,426.80

Finding the Fourth Proportional to 207,782,485.40, 311,468,150.10 and 98,415,426.80

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Solution

The fourth proportional to 207,782,485.40, 311,468,150.10 and 98,415,426.80 is: 147,525,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,782,485.40 : 311,468,150.10 = 98,415,426.80 : x
  2. Step 2: Convert to fraction form
    207,782,485.40/311,468,150.10 = 98,415,426.80/x
  3. Step 3: Cross multiply
    207,782,485.40x = 311,468,150.10 × 98,415,426.80
  4. Step 4: Simplify right side
    207,782,485.40x = 30,653,270,926,697,964
  5. Step 5: Solve for x
    x = 30,653,270,926,697,964/207,782,485.40
  6. Step 6: Final answer
    x = 147,525,768.92

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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.