Home / 258,975,152.80-388,400,521.20-149,563,722.40

Finding the Fourth Proportional to 258,975,152.80, 388,400,521.20 and 149,563,722.40

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Solution

The fourth proportional to 258,975,152.80, 388,400,521.20 and 149,563,722.40 is: 224,309,657.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,975,152.80 : 388,400,521.20 = 149,563,722.40 : x
  2. Step 2: Convert to fraction form
    258,975,152.80/388,400,521.20 = 149,563,722.40/x
  3. Step 3: Cross multiply
    258,975,152.80x = 388,400,521.20 × 149,563,722.40
  4. Step 4: Simplify right side
    258,975,152.80x = 58,090,627,732,772,112
  5. Step 5: Solve for x
    x = 58,090,627,732,772,112/258,975,152.80
  6. Step 6: Final answer
    x = 224,309,657.14

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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.