Home / 243,727,071.90-336,343,359.22-139,307,385.23

Finding the Fourth Proportional to 243,727,071.90, 336,343,359.22 and 139,307,385.23

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Solution

The fourth proportional to 243,727,071.90, 336,343,359.22 and 139,307,385.23 is: 192,244,191.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,727,071.90 : 336,343,359.22 = 139,307,385.23 : x
  2. Step 2: Convert to fraction form
    243,727,071.90/336,343,359.22 = 139,307,385.23/x
  3. Step 3: Cross multiply
    243,727,071.90x = 336,343,359.22 × 139,307,385.23
  4. Step 4: Simplify right side
    243,727,071.90x = 46,855,113,911,647,472
  5. Step 5: Solve for x
    x = 46,855,113,911,647,472/243,727,071.90
  6. Step 6: Final answer
    x = 192,244,191.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.