Finding the Fourth Proportional to 75,692,220.40, 104,455,305.89 and 40,884,910.71
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Solution
The fourth proportional to 75,692,220.40, 104,455,305.89 and 40,884,910.71 is: 56,421,199.32
Step by Step Solution
- Step 1: Write the proportion equation
75,692,220.40 : 104,455,305.89 = 40,884,910.71 : x - Step 2: Convert to fraction form
75,692,220.40/104,455,305.89 = 40,884,910.71/x - Step 3: Cross multiply
75,692,220.40x = 104,455,305.89 × 40,884,910.71 - Step 4: Simplify right side
75,692,220.40x = 4,270,645,854,498,387 - Step 5: Solve for x
x = 4,270,645,854,498,387/75,692,220.40 - Step 6: Final answer
x = 56,421,199.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.