Home / 863,138,527.20-1,294,707,790.80-784,060,106.40

Finding the Fourth Proportional to 863,138,527.20, 1,294,707,790.80 and 784,060,106.40

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Solution

The fourth proportional to 863,138,527.20, 1,294,707,790.80 and 784,060,106.40 is: 1,176,090,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,138,527.20 : 1,294,707,790.80 = 784,060,106.40 : x
  2. Step 2: Convert to fraction form
    863,138,527.20/1,294,707,790.80 = 784,060,106.40/x
  3. Step 3: Cross multiply
    863,138,527.20x = 1,294,707,790.80 × 784,060,106.40
  4. Step 4: Simplify right side
    863,138,527.20x = 1,015,128,728,211,556,864
  5. Step 5: Solve for x
    x = 1,015,128,728,211,556,864/863,138,527.20
  6. Step 6: Final answer
    x = 1,176,090,159.60

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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.