Finding the Fourth Proportional to 93,312,078.20, 139,968,117.30 and 82,352,583.80
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Solution
The fourth proportional to 93,312,078.20, 139,968,117.30 and 82,352,583.80 is: 123,528,875.70
Step by Step Solution
- Step 1: Write the proportion equation
93,312,078.20 : 139,968,117.30 = 82,352,583.80 : x - Step 2: Convert to fraction form
93,312,078.20/139,968,117.30 = 82,352,583.80/x - Step 3: Cross multiply
93,312,078.20x = 139,968,117.30 × 82,352,583.80 - Step 4: Simplify right side
93,312,078.20x = 11,526,736,109,276,480 - Step 5: Solve for x
x = 11,526,736,109,276,480/93,312,078.20 - Step 6: Final answer
x = 123,528,875.70
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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.