Home / 723,707,878.86-1,086,020,967.31-309,187,823.15

Finding the Fourth Proportional to 723,707,878.86, 1,086,020,967.31 and 309,187,823.15

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Solution

The fourth proportional to 723,707,878.86, 1,086,020,967.31 and 309,187,823.15 is: 463,977,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,707,878.86 : 1,086,020,967.31 = 309,187,823.15 : x
  2. Step 2: Convert to fraction form
    723,707,878.86/1,086,020,967.31 = 309,187,823.15/x
  3. Step 3: Cross multiply
    723,707,878.86x = 1,086,020,967.31 × 309,187,823.15
  4. Step 4: Simplify right side
    723,707,878.86x = 335,784,458,779,778,240
  5. Step 5: Solve for x
    x = 335,784,458,779,778,240/723,707,878.86
  6. Step 6: Final answer
    x = 463,977,895.76

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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.