Home / 1,271,216,089.80-1,908,041,856.30-658,240,230.60

Finding the Fourth Proportional to 1,271,216,089.80, 1,908,041,856.30 and 658,240,230.60

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Solution

The fourth proportional to 1,271,216,089.80, 1,908,041,856.30 and 658,240,230.60 is: 987,990,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,216,089.80 : 1,908,041,856.30 = 658,240,230.60 : x
  2. Step 2: Convert to fraction form
    1,271,216,089.80/1,908,041,856.30 = 658,240,230.60/x
  3. Step 3: Cross multiply
    1,271,216,089.80x = 1,908,041,856.30 × 658,240,230.60
  4. Step 4: Simplify right side
    1,271,216,089.80x = 1,255,949,911,485,363,968
  5. Step 5: Solve for x
    x = 1,255,949,911,485,363,968/1,271,216,089.80
  6. Step 6: Final answer
    x = 987,990,886.49

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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.