Finding the Fourth Proportional to 93,312,153.60, 139,968,230.40 and 85,921,843.20
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Solution
The fourth proportional to 93,312,153.60, 139,968,230.40 and 85,921,843.20 is: 128,882,764.80
Step by Step Solution
- Step 1: Write the proportion equation
93,312,153.60 : 139,968,230.40 = 85,921,843.20 : x - Step 2: Convert to fraction form
93,312,153.60/139,968,230.40 = 85,921,843.20/x - Step 3: Cross multiply
93,312,153.60x = 139,968,230.40 × 85,921,843.20 - Step 4: Simplify right side
93,312,153.60x = 12,026,328,345,410,274 - Step 5: Solve for x
x = 12,026,328,345,410,274/93,312,153.60 - Step 6: Final answer
x = 128,882,764.80
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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.