Finding the Fourth Proportional to 845,778,835.30, 1,268,668,252.95 and 788,383,207.30
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Solution
The fourth proportional to 845,778,835.30, 1,268,668,252.95 and 788,383,207.30 is: 1,182,574,810.95
Step by Step Solution
- Step 1: Write the proportion equation
845,778,835.30 : 1,268,668,252.95 = 788,383,207.30 : x - Step 2: Convert to fraction form
845,778,835.30/1,268,668,252.95 = 788,383,207.30/x - Step 3: Cross multiply
845,778,835.30x = 1,268,668,252.95 × 788,383,207.30 - Step 4: Simplify right side
845,778,835.30x = 1,000,196,746,260,408,704 - Step 5: Solve for x
x = 1,000,196,746,260,408,704/845,778,835.30 - Step 6: Final answer
x = 1,182,574,810.95
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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.