Finding the Fourth Proportional to 891,029,984.96, 1,337,856,991.68 and 498,326,207.12
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Solution
The fourth proportional to 891,029,984.96, 1,337,856,991.68 and 498,326,207.12 is: 748,223,080.69
Step by Step Solution
- Step 1: Write the proportion equation
891,029,984.96 : 1,337,856,991.68 = 498,326,207.12 : x - Step 2: Convert to fraction form
891,029,984.96/1,337,856,991.68 = 498,326,207.12/x - Step 3: Cross multiply
891,029,984.96x = 1,337,856,991.68 × 498,326,207.12 - Step 4: Simplify right side
891,029,984.96x = 666,689,200,332,867,840 - Step 5: Solve for x
x = 666,689,200,332,867,840/891,029,984.96 - Step 6: Final answer
x = 748,223,080.69
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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.