Home / 166,477,848.80-249,617,240.40-85,856,280.80

Finding the Fourth Proportional to 166,477,848.80, 249,617,240.40 and 85,856,280.80

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Solution

The fourth proportional to 166,477,848.80, 249,617,240.40 and 85,856,280.80 is: 128,733,089.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,477,848.80 : 249,617,240.40 = 85,856,280.80 : x
  2. Step 2: Convert to fraction form
    166,477,848.80/249,617,240.40 = 85,856,280.80/x
  3. Step 3: Cross multiply
    166,477,848.80x = 249,617,240.40 × 85,856,280.80
  4. Step 4: Simplify right side
    166,477,848.80x = 21,431,207,884,303,504
  5. Step 5: Solve for x
    x = 21,431,207,884,303,504/166,477,848.80
  6. Step 6: Final answer
    x = 128,733,089.95

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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.