Home / 390,330,152.57-585,437,636.85-113,907,146.90

Finding the Fourth Proportional to 390,330,152.57, 585,437,636.85 and 113,907,146.90

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Solution

The fourth proportional to 390,330,152.57, 585,437,636.85 and 113,907,146.90 is: 170,843,913.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,330,152.57 : 585,437,636.85 = 113,907,146.90 : x
  2. Step 2: Convert to fraction form
    390,330,152.57/585,437,636.85 = 113,907,146.90/x
  3. Step 3: Cross multiply
    390,330,152.57x = 585,437,636.85 × 113,907,146.90
  4. Step 4: Simplify right side
    390,330,152.57x = 66,685,530,900,474,712
  5. Step 5: Solve for x
    x = 66,685,530,900,474,712/390,330,152.57
  6. Step 6: Final answer
    x = 170,843,913.70

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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.