Home / 166,019,643.20-249,100,323.60-79,713,624.80

Finding the Fourth Proportional to 166,019,643.20, 249,100,323.60 and 79,713,624.80

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Solution

The fourth proportional to 166,019,643.20, 249,100,323.60 and 79,713,624.80 is: 119,604,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,019,643.20 : 249,100,323.60 = 79,713,624.80 : x
  2. Step 2: Convert to fraction form
    166,019,643.20/249,100,323.60 = 79,713,624.80/x
  3. Step 3: Cross multiply
    166,019,643.20x = 249,100,323.60 × 79,713,624.80
  4. Step 4: Simplify right side
    166,019,643.20x = 19,856,689,733,008,984
  5. Step 5: Solve for x
    x = 19,856,689,733,008,984/166,019,643.20
  6. Step 6: Final answer
    x = 119,604,459.75

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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.