Home / 660,056,756.40-990,085,318.07-245,479,409.96

Finding the Fourth Proportional to 660,056,756.40, 990,085,318.07 and 245,479,409.96

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Solution

The fourth proportional to 660,056,756.40, 990,085,318.07 and 245,479,409.96 is: 368,219,183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,056,756.40 : 990,085,318.07 = 245,479,409.96 : x
  2. Step 2: Convert to fraction form
    660,056,756.40/990,085,318.07 = 245,479,409.96/x
  3. Step 3: Cross multiply
    660,056,756.40x = 990,085,318.07 × 245,479,409.96
  4. Step 4: Simplify right side
    660,056,756.40x = 243,045,559,683,704,736
  5. Step 5: Solve for x
    x = 243,045,559,683,704,736/660,056,756.40
  6. Step 6: Final answer
    x = 368,219,183.16

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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.