Home / 886,470,431.40-1,329,705,647.10-519,138,412.20

Finding the Fourth Proportional to 886,470,431.40, 1,329,705,647.10 and 519,138,412.20

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Solution

The fourth proportional to 886,470,431.40, 1,329,705,647.10 and 519,138,412.20 is: 778,707,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,470,431.40 : 1,329,705,647.10 = 519,138,412.20 : x
  2. Step 2: Convert to fraction form
    886,470,431.40/1,329,705,647.10 = 519,138,412.20/x
  3. Step 3: Cross multiply
    886,470,431.40x = 1,329,705,647.10 × 519,138,412.20
  4. Step 4: Simplify right side
    886,470,431.40x = 690,301,278,328,867,456
  5. Step 5: Solve for x
    x = 690,301,278,328,867,456/886,470,431.40
  6. Step 6: Final answer
    x = 778,707,618.30

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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.