Finding the Fourth Proportional to 926,641,934.16, 1,278,790,841.20 and 545,190,595.80
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Solution
The fourth proportional to 926,641,934.16, 1,278,790,841.20 and 545,190,595.80 is: 752,377,714.54
Step by Step Solution
- Step 1: Write the proportion equation
926,641,934.16 : 1,278,790,841.20 = 545,190,595.80 : x - Step 2: Convert to fraction form
926,641,934.16/1,278,790,841.20 = 545,190,595.80/x - Step 3: Cross multiply
926,641,934.16x = 1,278,790,841.20 × 545,190,595.80 - Step 4: Simplify right side
926,641,934.16x = 697,184,740,617,411,200 - Step 5: Solve for x
x = 697,184,740,617,411,200/926,641,934.16 - Step 6: Final answer
x = 752,377,714.54
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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.