Home / 687,054,916.80-1,030,229,344.80-202,317,739.20

Finding the Fourth Proportional to 687,054,916.80, 1,030,229,344.80 and 202,317,739.20

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Solution

The fourth proportional to 687,054,916.80, 1,030,229,344.80 and 202,317,739.20 is: 303,372,651.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,054,916.80 : 1,030,229,344.80 = 202,317,739.20 : x
  2. Step 2: Convert to fraction form
    687,054,916.80/1,030,229,344.80 = 202,317,739.20/x
  3. Step 3: Cross multiply
    687,054,916.80x = 1,030,229,344.80 × 202,317,739.20
  4. Step 4: Simplify right side
    687,054,916.80x = 208,433,671,897,433,248
  5. Step 5: Solve for x
    x = 208,433,671,897,433,248/687,054,916.80
  6. Step 6: Final answer
    x = 303,372,651.59

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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.