Finding the Fourth Proportional to 974,908,293.60, 1,345,373,445.12 and 557,229,546.96
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Solution
The fourth proportional to 974,908,293.60, 1,345,373,445.12 and 557,229,546.96 is: 768,976,774.78
Step by Step Solution
- Step 1: Write the proportion equation
974,908,293.60 : 1,345,373,445.12 = 557,229,546.96 : x - Step 2: Convert to fraction form
974,908,293.60/1,345,373,445.12 = 557,229,546.96/x - Step 3: Cross multiply
974,908,293.60x = 1,345,373,445.12 × 557,229,546.96 - Step 4: Simplify right side
974,908,293.60x = 749,681,835,316,232,064 - Step 5: Solve for x
x = 749,681,835,316,232,064/974,908,293.60 - Step 6: Final answer
x = 768,976,774.78
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Double scale
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1.5x scale
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.