Finding the Fourth Proportional to 83,871,677.88, 115,778,626.56 and 56,385,549.36
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Solution
The fourth proportional to 83,871,677.88, 115,778,626.56 and 56,385,549.36 is: 77,836,066.09
Step by Step Solution
- Step 1: Write the proportion equation
83,871,677.88 : 115,778,626.56 = 56,385,549.36 : x - Step 2: Convert to fraction form
83,871,677.88/115,778,626.56 = 56,385,549.36/x - Step 3: Cross multiply
83,871,677.88x = 115,778,626.56 × 56,385,549.36 - Step 4: Simplify right side
83,871,677.88x = 6,528,241,462,731,887 - Step 5: Solve for x
x = 6,528,241,462,731,887/83,871,677.88 - Step 6: Final answer
x = 77,836,066.09
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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.