Home / 1,994,545,981.80-2,991,818,972.70-614,181,128.40

Finding the Fourth Proportional to 1,994,545,981.80, 2,991,818,972.70 and 614,181,128.40

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Solution

The fourth proportional to 1,994,545,981.80, 2,991,818,972.70 and 614,181,128.40 is: 921,271,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,545,981.80 : 2,991,818,972.70 = 614,181,128.40 : x
  2. Step 2: Convert to fraction form
    1,994,545,981.80/2,991,818,972.70 = 614,181,128.40/x
  3. Step 3: Cross multiply
    1,994,545,981.80x = 2,991,818,972.70 × 614,181,128.40
  4. Step 4: Simplify right side
    1,994,545,981.80x = 1,837,518,752,621,414,656
  5. Step 5: Solve for x
    x = 1,837,518,752,621,414,656/1,994,545,981.80
  6. Step 6: Final answer
    x = 921,271,692.60

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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.