Home / 319,081,137.76-440,365,823.13-187,033,079.08

Finding the Fourth Proportional to 319,081,137.76, 440,365,823.13 and 187,033,079.08

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Solution

The fourth proportional to 319,081,137.76, 440,365,823.13 and 187,033,079.08 is: 258,125,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,081,137.76 : 440,365,823.13 = 187,033,079.08 : x
  2. Step 2: Convert to fraction form
    319,081,137.76/440,365,823.13 = 187,033,079.08/x
  3. Step 3: Cross multiply
    319,081,137.76x = 440,365,823.13 × 187,033,079.08
  4. Step 4: Simplify right side
    319,081,137.76x = 82,362,975,821,602,592
  5. Step 5: Solve for x
    x = 82,362,975,821,602,592/319,081,137.76
  6. Step 6: Final answer
    x = 258,125,492.47

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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.