Finding the Fourth Proportional to 903,103,698.70, 1,354,655,548.05 and 673,521,186.70
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Solution
The fourth proportional to 903,103,698.70, 1,354,655,548.05 and 673,521,186.70 is: 1,010,281,780.05
Step by Step Solution
- Step 1: Write the proportion equation
903,103,698.70 : 1,354,655,548.05 = 673,521,186.70 : x - Step 2: Convert to fraction form
903,103,698.70/1,354,655,548.05 = 673,521,186.70/x - Step 3: Cross multiply
903,103,698.70x = 1,354,655,548.05 × 673,521,186.70 - Step 4: Simplify right side
903,103,698.70x = 912,389,212,292,374,912 - Step 5: Solve for x
x = 912,389,212,292,374,912/903,103,698.70 - Step 6: Final answer
x = 1,010,281,780.05
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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.