Home / 319,421,030.10-440,802,350.19-172,743,314.10

Finding the Fourth Proportional to 319,421,030.10, 440,802,350.19 and 172,743,314.10

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Solution

The fourth proportional to 319,421,030.10, 440,802,350.19 and 172,743,314.10 is: 238,386,491.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,421,030.10 : 440,802,350.19 = 172,743,314.10 : x
  2. Step 2: Convert to fraction form
    319,421,030.10/440,802,350.19 = 172,743,314.10/x
  3. Step 3: Cross multiply
    319,421,030.10x = 440,802,350.19 × 172,743,314.10
  4. Step 4: Simplify right side
    319,421,030.10x = 76,145,658,834,889,360
  5. Step 5: Solve for x
    x = 76,145,658,834,889,360/319,421,030.10
  6. Step 6: Final answer
    x = 238,386,491.99

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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.