Finding the Fourth Proportional to 75,467,761.60, 112,940,368.80 and 45,197,348.80
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Solution
The fourth proportional to 75,467,761.60, 112,940,368.80 and 45,197,348.80 is: 67,639,547.46
Step by Step Solution
- Step 1: Write the proportion equation
75,467,761.60 : 112,940,368.80 = 45,197,348.80 : x - Step 2: Convert to fraction form
75,467,761.60/112,940,368.80 = 45,197,348.80/x - Step 3: Cross multiply
75,467,761.60x = 112,940,368.80 × 45,197,348.80 - Step 4: Simplify right side
75,467,761.60x = 5,104,605,242,254,237 - Step 5: Solve for x
x = 5,104,605,242,254,237/75,467,761.60 - Step 6: Final answer
x = 67,639,547.46
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.