Finding the Fourth Proportional to 130,409,737.20, 195,614,605.80 and 69,943,561.20
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Solution
The fourth proportional to 130,409,737.20, 195,614,605.80 and 69,943,561.20 is: 104,915,341.80
Step by Step Solution
- Step 1: Write the proportion equation
130,409,737.20 : 195,614,605.80 = 69,943,561.20 : x - Step 2: Convert to fraction form
130,409,737.20/195,614,605.80 = 69,943,561.20/x - Step 3: Cross multiply
130,409,737.20x = 195,614,605.80 × 69,943,561.20 - Step 4: Simplify right side
130,409,737.20x = 13,681,982,152,386,176 - Step 5: Solve for x
x = 13,681,982,152,386,176/130,409,737.20 - Step 6: Final answer
x = 104,915,341.80
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1.5x scale
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.