Home / 660,388,511.70-990,582,767.55-373,734,047.70

Finding the Fourth Proportional to 660,388,511.70, 990,582,767.55 and 373,734,047.70

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Solution

The fourth proportional to 660,388,511.70, 990,582,767.55 and 373,734,047.70 is: 560,601,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,388,511.70 : 990,582,767.55 = 373,734,047.70 : x
  2. Step 2: Convert to fraction form
    660,388,511.70/990,582,767.55 = 373,734,047.70/x
  3. Step 3: Cross multiply
    660,388,511.70x = 990,582,767.55 × 373,734,047.70
  4. Step 4: Simplify right side
    660,388,511.70x = 370,214,507,298,329,664
  5. Step 5: Solve for x
    x = 370,214,507,298,329,664/660,388,511.70
  6. Step 6: Final answer
    x = 560,601,071.55

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Double scale
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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.