Finding the Fourth Proportional to 787,321,356.85, 1,180,982,035.28 and 241,992,032.05
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Solution
The fourth proportional to 787,321,356.85, 1,180,982,035.28 and 241,992,032.05 is: 362,988,048.08
Step by Step Solution
- Step 1: Write the proportion equation
787,321,356.85 : 1,180,982,035.28 = 241,992,032.05 : x - Step 2: Convert to fraction form
787,321,356.85/1,180,982,035.28 = 241,992,032.05/x - Step 3: Cross multiply
787,321,356.85x = 1,180,982,035.28 × 241,992,032.05 - Step 4: Simplify right side
787,321,356.85x = 285,788,242,530,742,080 - Step 5: Solve for x
x = 285,788,242,530,742,080/787,321,356.85 - Step 6: Final answer
x = 362,988,048.08
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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.