Finding the Fourth Proportional to 963,078,252.80, 1,329,129,956.76 and 545,464,829.12
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Solution
The fourth proportional to 963,078,252.80, 1,329,129,956.76 and 545,464,829.12 is: 752,787,888.87
Step by Step Solution
- Step 1: Write the proportion equation
963,078,252.80 : 1,329,129,956.76 = 545,464,829.12 : x - Step 2: Convert to fraction form
963,078,252.80/1,329,129,956.76 = 545,464,829.12/x - Step 3: Cross multiply
963,078,252.80x = 1,329,129,956.76 × 545,464,829.12 - Step 4: Simplify right side
963,078,252.80x = 724,993,644,742,366,336 - Step 5: Solve for x
x = 724,993,644,742,366,336/963,078,252.80 - Step 6: Final answer
x = 752,787,888.87
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1.5x scale
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.