Home / 889,410,228.46-1,226,670,442.34-781,889,655.84

Finding the Fourth Proportional to 889,410,228.46, 1,226,670,442.34 and 781,889,655.84

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Solution

The fourth proportional to 889,410,228.46, 1,226,670,442.34 and 781,889,655.84 is: 1,078,378,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,410,228.46 : 1,226,670,442.34 = 781,889,655.84 : x
  2. Step 2: Convert to fraction form
    889,410,228.46/1,226,670,442.34 = 781,889,655.84/x
  3. Step 3: Cross multiply
    889,410,228.46x = 1,226,670,442.34 × 781,889,655.84
  4. Step 4: Simplify right side
    889,410,228.46x = 959,120,929,990,323,200
  5. Step 5: Solve for x
    x = 959,120,929,990,323,200/889,410,228.46
  6. Step 6: Final answer
    x = 1,078,378,569.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.