Finding the Fourth Proportional to 887,122,615.70, 1,330,683,923.55 and 542,748,847.70
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Solution
The fourth proportional to 887,122,615.70, 1,330,683,923.55 and 542,748,847.70 is: 814,123,271.55
Step by Step Solution
- Step 1: Write the proportion equation
887,122,615.70 : 1,330,683,923.55 = 542,748,847.70 : x - Step 2: Convert to fraction form
887,122,615.70/1,330,683,923.55 = 542,748,847.70/x - Step 3: Cross multiply
887,122,615.70x = 1,330,683,923.55 × 542,748,847.70 - Step 4: Simplify right side
887,122,615.70x = 722,227,166,159,677,440 - Step 5: Solve for x
x = 722,227,166,159,677,440/887,122,615.70 - Step 6: Final answer
x = 814,123,271.55
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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.