Home / 345,438,721.65-517,402,255.28-300,089,089.65

Finding the Fourth Proportional to 345,438,721.65, 517,402,255.28 and 300,089,089.65

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Solution

The fourth proportional to 345,438,721.65, 517,402,255.28 and 300,089,089.65 is: 449,477,033.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,438,721.65 : 517,402,255.28 = 300,089,089.65 : x
  2. Step 2: Convert to fraction form
    345,438,721.65/517,402,255.28 = 300,089,089.65/x
  3. Step 3: Cross multiply
    345,438,721.65x = 517,402,255.28 × 300,089,089.65
  4. Step 4: Simplify right side
    345,438,721.65x = 155,266,771,768,331,648
  5. Step 5: Solve for x
    x = 155,266,771,768,331,648/345,438,721.65
  6. Step 6: Final answer
    x = 449,477,033.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.