Home / 243,727,077.43-336,343,366.88-139,307,390.77

Finding the Fourth Proportional to 243,727,077.43, 336,343,366.88 and 139,307,390.77

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Solution

The fourth proportional to 243,727,077.43, 336,343,366.88 and 139,307,390.77 is: 192,244,199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,727,077.43 : 336,343,366.88 = 139,307,390.77 : x
  2. Step 2: Convert to fraction form
    243,727,077.43/336,343,366.88 = 139,307,390.77/x
  3. Step 3: Cross multiply
    243,727,077.43x = 336,343,366.88 × 139,307,390.77
  4. Step 4: Simplify right side
    243,727,077.43x = 46,855,116,842,849,640
  5. Step 5: Solve for x
    x = 46,855,116,842,849,640/243,727,077.43
  6. Step 6: Final answer
    x = 192,244,199.28

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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.