Home / 862,164,013.20-1,293,246,019.80-402,148,683.60

Finding the Fourth Proportional to 862,164,013.20, 1,293,246,019.80 and 402,148,683.60

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Solution

The fourth proportional to 862,164,013.20, 1,293,246,019.80 and 402,148,683.60 is: 603,223,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,164,013.20 : 1,293,246,019.80 = 402,148,683.60 : x
  2. Step 2: Convert to fraction form
    862,164,013.20/1,293,246,019.80 = 402,148,683.60/x
  3. Step 3: Cross multiply
    862,164,013.20x = 1,293,246,019.80 × 402,148,683.60
  4. Step 4: Simplify right side
    862,164,013.20x = 520,077,184,433,509,568
  5. Step 5: Solve for x
    x = 520,077,184,433,509,568/862,164,013.20
  6. Step 6: Final answer
    x = 603,223,025.40

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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.