Finding the Fourth Proportional to 926,641,925.14, 1,278,790,828.80 and 545,190,586.79
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Solution
The fourth proportional to 926,641,925.14, 1,278,790,828.80 and 545,190,586.79 is: 752,377,702.13
Step by Step Solution
- Step 1: Write the proportion equation
926,641,925.14 : 1,278,790,828.80 = 545,190,586.79 : x - Step 2: Convert to fraction form
926,641,925.14/1,278,790,828.80 = 545,190,586.79/x - Step 3: Cross multiply
926,641,925.14x = 1,278,790,828.80 × 545,190,586.79 - Step 4: Simplify right side
926,641,925.14x = 697,184,722,335,142,400 - Step 5: Solve for x
x = 697,184,722,335,142,400/926,641,925.14 - Step 6: Final answer
x = 752,377,702.13
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Double scale
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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.