Home / 1,302,950,400.80-1,954,709,036.40-429,403,114.40

Finding the Fourth Proportional to 1,302,950,400.80, 1,954,709,036.40 and 429,403,114.40

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Solution

The fourth proportional to 1,302,950,400.80, 1,954,709,036.40 and 429,403,114.40 is: 644,198,081.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,950,400.80 : 1,954,709,036.40 = 429,403,114.40 : x
  2. Step 2: Convert to fraction form
    1,302,950,400.80/1,954,709,036.40 = 429,403,114.40/x
  3. Step 3: Cross multiply
    1,302,950,400.80x = 1,954,709,036.40 × 429,403,114.40
  4. Step 4: Simplify right side
    1,302,950,400.80x = 839,358,147,975,982,976
  5. Step 5: Solve for x
    x = 839,358,147,975,982,976/1,302,950,400.80
  6. Step 6: Final answer
    x = 644,198,081.11

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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.