Finding the Fourth Proportional to 139,473,358.74, 192,475,005.81 and 76,756,677.75
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Solution
The fourth proportional to 139,473,358.74, 192,475,005.81 and 76,756,677.75 is: 105,925,189.80
Step by Step Solution
- Step 1: Write the proportion equation
139,473,358.74 : 192,475,005.81 = 76,756,677.75 : x - Step 2: Convert to fraction form
139,473,358.74/192,475,005.81 = 76,756,677.75/x - Step 3: Cross multiply
139,473,358.74x = 192,475,005.81 × 76,756,677.75 - Step 4: Simplify right side
139,473,358.74x = 14,773,741,995,887,548 - Step 5: Solve for x
x = 14,773,741,995,887,548/139,473,358.74 - Step 6: Final answer
x = 105,925,189.80
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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.