Finding the Fourth Proportional to 1,119,588,302.80, 1,679,382,454.20 and 497,802,332.80
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Solution
The fourth proportional to 1,119,588,302.80, 1,679,382,454.20 and 497,802,332.80 is: 746,703,499.20
Step by Step Solution
- Step 1: Write the proportion equation
1,119,588,302.80 : 1,679,382,454.20 = 497,802,332.80 : x - Step 2: Convert to fraction form
1,119,588,302.80/1,679,382,454.20 = 497,802,332.80/x - Step 3: Cross multiply
1,119,588,302.80x = 1,679,382,454.20 × 497,802,332.80 - Step 4: Simplify right side
1,119,588,302.80x = 836,000,503,364,149,248 - Step 5: Solve for x
x = 836,000,503,364,149,248/1,119,588,302.80 - Step 6: Final answer
x = 746,703,499.20
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Double scale
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Similar ratio
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1.5x scale
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.