Finding the Fourth Proportional to 2,887,445,284.40, 4,331,167,926.60 and 706,411,420.40
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Solution
The fourth proportional to 2,887,445,284.40, 4,331,167,926.60 and 706,411,420.40 is: 1,059,617,130.60
Step by Step Solution
- Step 1: Write the proportion equation
2,887,445,284.40 : 4,331,167,926.60 = 706,411,420.40 : x - Step 2: Convert to fraction form
2,887,445,284.40/4,331,167,926.60 = 706,411,420.40/x - Step 3: Cross multiply
2,887,445,284.40x = 4,331,167,926.60 × 706,411,420.40 - Step 4: Simplify right side
2,887,445,284.40x = 3,059,586,487,020,429,312 - Step 5: Solve for x
x = 3,059,586,487,020,429,312/2,887,445,284.40 - Step 6: Final answer
x = 1,059,617,130.60
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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.