Finding the Fourth Proportional to 74,884,813.60, 112,327,220.40 and 65,628,263.20
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Solution
The fourth proportional to 74,884,813.60, 112,327,220.40 and 65,628,263.20 is: 98,442,394.80
Step by Step Solution
- Step 1: Write the proportion equation
74,884,813.60 : 112,327,220.40 = 65,628,263.20 : x - Step 2: Convert to fraction form
74,884,813.60/112,327,220.40 = 65,628,263.20/x - Step 3: Cross multiply
74,884,813.60x = 112,327,220.40 × 65,628,263.20 - Step 4: Simplify right side
74,884,813.60x = 7,371,840,384,935,610 - Step 5: Solve for x
x = 7,371,840,384,935,610/74,884,813.60 - Step 6: Final answer
x = 98,442,394.80
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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.