Finding the Fourth Proportional to 84,490,272,021.30, 126,735,408,031.95 and 84,490,272,021.30
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Solution
The fourth proportional to 84,490,272,021.30, 126,735,408,031.95 and 84,490,272,021.30 is: 126,735,408,031.95
Step by Step Solution
- Step 1: Write the proportion equation
84,490,272,021.30 : 126,735,408,031.95 = 84,490,272,021.30 : x - Step 2: Convert to fraction form
84,490,272,021.30/126,735,408,031.95 = 84,490,272,021.30/x - Step 3: Cross multiply
84,490,272,021.30x = 126,735,408,031.95 × 84,490,272,021.30 - Step 4: Simplify right side
84,490,272,021.30x = 10,707,909,099,349,904,195,584 - Step 5: Solve for x
x = 10,707,909,099,349,904,195,584/84,490,272,021.30 - Step 6: Final answer
x = 126,735,408,031.95
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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.