Finding the Fourth Proportional to 863,168,281.12, 1,191,264,539.20 and 528,862,662.88
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Solution
The fourth proportional to 863,168,281.12, 1,191,264,539.20 and 528,862,662.88 is: 729,887,033.82
Step by Step Solution
- Step 1: Write the proportion equation
863,168,281.12 : 1,191,264,539.20 = 528,862,662.88 : x - Step 2: Convert to fraction form
863,168,281.12/1,191,264,539.20 = 528,862,662.88/x - Step 3: Cross multiply
863,168,281.12x = 1,191,264,539.20 × 528,862,662.88 - Step 4: Simplify right side
863,168,281.12x = 630,015,336,395,828,224 - Step 5: Solve for x
x = 630,015,336,395,828,224/863,168,281.12 - Step 6: Final answer
x = 729,887,033.82
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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.