Home / 519,860,273.86-779,784,399.10-126,389,329.08

Finding the Fourth Proportional to 519,860,273.86, 779,784,399.10 and 126,389,329.08

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Solution

The fourth proportional to 519,860,273.86, 779,784,399.10 and 126,389,329.08 is: 189,582,532.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,860,273.86 : 779,784,399.10 = 126,389,329.08 : x
  2. Step 2: Convert to fraction form
    519,860,273.86/779,784,399.10 = 126,389,329.08/x
  3. Step 3: Cross multiply
    519,860,273.86x = 779,784,399.10 × 126,389,329.08
  4. Step 4: Simplify right side
    519,860,273.86x = 98,556,427,029,299,952
  5. Step 5: Solve for x
    x = 98,556,427,029,299,952/519,860,273.86
  6. Step 6: Final answer
    x = 189,582,532.05

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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.