Finding the Fourth Proportional to 19,533,312,089.40, 29,299,968,134.10 and 18,771,438,271.80
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Solution
The fourth proportional to 19,533,312,089.40, 29,299,968,134.10 and 18,771,438,271.80 is: 28,157,157,407.70
Step by Step Solution
- Step 1: Write the proportion equation
19,533,312,089.40 : 29,299,968,134.10 = 18,771,438,271.80 : x - Step 2: Convert to fraction form
19,533,312,089.40/29,299,968,134.10 = 18,771,438,271.80/x - Step 3: Cross multiply
19,533,312,089.40x = 29,299,968,134.10 × 18,771,438,271.80 - Step 4: Simplify right side
19,533,312,089.40x = 550,002,543,194,965,147,648 - Step 5: Solve for x
x = 550,002,543,194,965,147,648/19,533,312,089.40 - Step 6: Final answer
x = 28,157,157,407.70
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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.