Home / 1,087,235,288.40-1,630,852,932.60-679,548,939.60

Finding the Fourth Proportional to 1,087,235,288.40, 1,630,852,932.60 and 679,548,939.60

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Solution

The fourth proportional to 1,087,235,288.40, 1,630,852,932.60 and 679,548,939.60 is: 1,019,323,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,235,288.40 : 1,630,852,932.60 = 679,548,939.60 : x
  2. Step 2: Convert to fraction form
    1,087,235,288.40/1,630,852,932.60 = 679,548,939.60/x
  3. Step 3: Cross multiply
    1,087,235,288.40x = 1,630,852,932.60 × 679,548,939.60
  4. Step 4: Simplify right side
    1,087,235,288.40x = 1,108,244,380,991,880,192
  5. Step 5: Solve for x
    x = 1,108,244,380,991,880,192/1,087,235,288.40
  6. Step 6: Final answer
    x = 1,019,323,409.40

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Double scale
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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.