Finding the Fourth Proportional to 1,026,608,636.13, 1,416,720,294.47 and 556,709,832.53
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Solution
The fourth proportional to 1,026,608,636.13, 1,416,720,294.47 and 556,709,832.53 is: 768,259,773.12
Step by Step Solution
- Step 1: Write the proportion equation
1,026,608,636.13 : 1,416,720,294.47 = 556,709,832.53 : x - Step 2: Convert to fraction form
1,026,608,636.13/1,416,720,294.47 = 556,709,832.53/x - Step 3: Cross multiply
1,026,608,636.13x = 1,416,720,294.47 × 556,709,832.53 - Step 4: Simplify right side
1,026,608,636.13x = 788,702,117,879,521,408 - Step 5: Solve for x
x = 788,702,117,879,521,408/1,026,608,636.13 - Step 6: Final answer
x = 768,259,773.12
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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.