Home / 289,683,447.20-434,525,170.80-257,938,704.80

Finding the Fourth Proportional to 289,683,447.20, 434,525,170.80 and 257,938,704.80

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Solution

The fourth proportional to 289,683,447.20, 434,525,170.80 and 257,938,704.80 is: 386,908,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,683,447.20 : 434,525,170.80 = 257,938,704.80 : x
  2. Step 2: Convert to fraction form
    289,683,447.20/434,525,170.80 = 257,938,704.80/x
  3. Step 3: Cross multiply
    289,683,447.20x = 434,525,170.80 × 257,938,704.80
  4. Step 4: Simplify right side
    289,683,447.20x = 112,080,859,759,150,784
  5. Step 5: Solve for x
    x = 112,080,859,759,150,784/289,683,447.20
  6. Step 6: Final answer
    x = 386,908,057.20

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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.