Finding the Fourth Proportional to 963,247,779.40, 1,329,392,209.26 and 539,975,762.14
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Solution
The fourth proportional to 963,247,779.40, 1,329,392,209.26 and 539,975,762.14 is: 745,228,368.79
Step by Step Solution
- Step 1: Write the proportion equation
963,247,779.40 : 1,329,392,209.26 = 539,975,762.14 : x - Step 2: Convert to fraction form
963,247,779.40/1,329,392,209.26 = 539,975,762.14/x - Step 3: Cross multiply
963,247,779.40x = 1,329,392,209.26 × 539,975,762.14 - Step 4: Simplify right side
963,247,779.40x = 717,839,571,378,146,816 - Step 5: Solve for x
x = 717,839,571,378,146,816/963,247,779.40 - Step 6: Final answer
x = 745,228,368.79
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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.