Finding the Fourth Proportional to 130,389,698.40, 195,513,688.80 and 53,720,476.80
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Solution
The fourth proportional to 130,389,698.40, 195,513,688.80 and 53,720,476.80 is: 80,551,521.42
Step by Step Solution
- Step 1: Write the proportion equation
130,389,698.40 : 195,513,688.80 = 53,720,476.80 : x - Step 2: Convert to fraction form
130,389,698.40/195,513,688.80 = 53,720,476.80/x - Step 3: Cross multiply
130,389,698.40x = 195,513,688.80 × 53,720,476.80 - Step 4: Simplify right side
130,389,698.40x = 10,503,088,583,262,820 - Step 5: Solve for x
x = 10,503,088,583,262,820/130,389,698.40 - Step 6: Final answer
x = 80,551,521.42
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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.