Finding the Fourth Proportional to 752,950,878.72, 1,128,449,859.84 and 338,121,392.64
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Solution
The fourth proportional to 752,950,878.72, 1,128,449,859.84 and 338,121,392.64 is: 506,743,598.97
Step by Step Solution
- Step 1: Write the proportion equation
752,950,878.72 : 1,128,449,859.84 = 338,121,392.64 : x - Step 2: Convert to fraction form
752,950,878.72/1,128,449,859.84 = 338,121,392.64/x - Step 3: Cross multiply
752,950,878.72x = 1,128,449,859.84 × 338,121,392.64 - Step 4: Simplify right side
752,950,878.72x = 381,553,038,133,513,536 - Step 5: Solve for x
x = 381,553,038,133,513,536/752,950,878.72 - Step 6: Final answer
x = 506,743,598.97
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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.