Finding the Fourth Proportional to 1,099,911,893.76, 1,517,918,326.44 and 630,104,014.08
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Solution
The fourth proportional to 1,099,911,893.76, 1,517,918,326.44 and 630,104,014.08 is: 869,566,404.33
Step by Step Solution
- Step 1: Write the proportion equation
1,099,911,893.76 : 1,517,918,326.44 = 630,104,014.08 : x - Step 2: Convert to fraction form
1,099,911,893.76/1,517,918,326.44 = 630,104,014.08/x - Step 3: Cross multiply
1,099,911,893.76x = 1,517,918,326.44 × 630,104,014.08 - Step 4: Simplify right side
1,099,911,893.76x = 956,446,430,535,439,872 - Step 5: Solve for x
x = 956,446,430,535,439,872/1,099,911,893.76 - Step 6: Final answer
x = 869,566,404.33
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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.