Finding the Fourth Proportional to 749,125,211.40, 1,050,497,164.80 and 749,125,211.40
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Solution
The fourth proportional to 749,125,211.40, 1,050,497,164.80 and 749,125,211.40 is: 1,050,497,164.80
Step by Step Solution
- Step 1: Write the proportion equation
749,125,211.40 : 1,050,497,164.80 = 749,125,211.40 : x - Step 2: Convert to fraction form
749,125,211.40/1,050,497,164.80 = 749,125,211.40/x - Step 3: Cross multiply
749,125,211.40x = 1,050,497,164.80 × 749,125,211.40 - Step 4: Simplify right side
749,125,211.40x = 786,953,910,655,900,544 - Step 5: Solve for x
x = 786,953,910,655,900,544/749,125,211.40 - Step 6: Final answer
x = 1,050,497,164.80
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.