Home / 217,630,643.40-326,020,812.30-131,112,048.60

Finding the Fourth Proportional to 217,630,643.40, 326,020,812.30 and 131,112,048.60

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Solution

The fourth proportional to 217,630,643.40, 326,020,812.30 and 131,112,048.60 is: 196,411,938.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,630,643.40 : 326,020,812.30 = 131,112,048.60 : x
  2. Step 2: Convert to fraction form
    217,630,643.40/326,020,812.30 = 131,112,048.60/x
  3. Step 3: Cross multiply
    217,630,643.40x = 326,020,812.30 × 131,112,048.60
  4. Step 4: Simplify right side
    217,630,643.40x = 42,745,256,586,889,080
  5. Step 5: Solve for x
    x = 42,745,256,586,889,080/217,630,643.40
  6. Step 6: Final answer
    x = 196,411,938.68

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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.