Home / 1,455,285,774.80-2,182,928,662.20-420,180,424.40

Finding the Fourth Proportional to 1,455,285,774.80, 2,182,928,662.20 and 420,180,424.40

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Solution

The fourth proportional to 1,455,285,774.80, 2,182,928,662.20 and 420,180,424.40 is: 630,270,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,285,774.80 : 2,182,928,662.20 = 420,180,424.40 : x
  2. Step 2: Convert to fraction form
    1,455,285,774.80/2,182,928,662.20 = 420,180,424.40/x
  3. Step 3: Cross multiply
    1,455,285,774.80x = 2,182,928,662.20 × 420,180,424.40
  4. Step 4: Simplify right side
    1,455,285,774.80x = 917,223,891,718,120,064
  5. Step 5: Solve for x
    x = 917,223,891,718,120,064/1,455,285,774.80
  6. Step 6: Final answer
    x = 630,270,636.60

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1.5x scale

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.