Finding the Fourth Proportional to 2,887,445,232.90, 4,331,167,849.35 and 706,411,368.90
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Solution
The fourth proportional to 2,887,445,232.90, 4,331,167,849.35 and 706,411,368.90 is: 1,059,617,053.35
Step by Step Solution
- Step 1: Write the proportion equation
2,887,445,232.90 : 4,331,167,849.35 = 706,411,368.90 : x - Step 2: Convert to fraction form
2,887,445,232.90/4,331,167,849.35 = 706,411,368.90/x - Step 3: Cross multiply
2,887,445,232.90x = 4,331,167,849.35 × 706,411,368.90 - Step 4: Simplify right side
2,887,445,232.90x = 3,059,586,209,395,002,880 - Step 5: Solve for x
x = 3,059,586,209,395,002,880/2,887,445,232.90 - Step 6: Final answer
x = 1,059,617,053.35
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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.