Finding the Fourth Proportional to 1,165,879,312.80, 1,608,909,543.84 and 637,242,992.88
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Solution
The fourth proportional to 1,165,879,312.80, 1,608,909,543.84 and 637,242,992.88 is: 879,393,194.25
Step by Step Solution
- Step 1: Write the proportion equation
1,165,879,312.80 : 1,608,909,543.84 = 637,242,992.88 : x - Step 2: Convert to fraction form
1,165,879,312.80/1,608,909,543.84 = 637,242,992.88/x - Step 3: Cross multiply
1,165,879,312.80x = 1,608,909,543.84 × 637,242,992.88 - Step 4: Simplify right side
1,165,879,312.80x = 1,025,266,332,989,797,120 - Step 5: Solve for x
x = 1,025,266,332,989,797,120/1,165,879,312.80 - Step 6: Final answer
x = 879,393,194.25
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.