Home / 308,791,750.23-426,140,018.91-167,668,918.65

Finding the Fourth Proportional to 308,791,750.23, 426,140,018.91 and 167,668,918.65

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Solution

The fourth proportional to 308,791,750.23, 426,140,018.91 and 167,668,918.65 is: 231,387,127.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,791,750.23 : 426,140,018.91 = 167,668,918.65 : x
  2. Step 2: Convert to fraction form
    308,791,750.23/426,140,018.91 = 167,668,918.65/x
  3. Step 3: Cross multiply
    308,791,750.23x = 426,140,018.91 × 167,668,918.65
  4. Step 4: Simplify right side
    308,791,750.23x = 71,450,436,164,130,256
  5. Step 5: Solve for x
    x = 71,450,436,164,130,256/308,791,750.23
  6. Step 6: Final answer
    x = 231,387,127.77

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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.