Finding the Fourth Proportional to 189,971,733,487.81, 285,005,833,275.58 and 87,941,884,206.09
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Solution
The fourth proportional to 189,971,733,487.81, 285,005,833,275.58 and 87,941,884,206.09 is: 131,935,154,392.80
Step by Step Solution
- Step 1: Write the proportion equation
189,971,733,487.81 : 285,005,833,275.58 = 87,941,884,206.09 : x - Step 2: Convert to fraction form
189,971,733,487.81/285,005,833,275.58 = 87,941,884,206.09/x - Step 3: Cross multiply
189,971,733,487.81x = 285,005,833,275.58 × 87,941,884,206.09 - Step 4: Simplify right side
189,971,733,487.81x = 25,063,949,987,981,249,478,656 - Step 5: Solve for x
x = 25,063,949,987,981,249,478,656/189,971,733,487.81 - Step 6: Final answer
x = 131,935,154,392.80
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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.