Finding the Fourth Proportional to 19,408,896,408.90, 29,113,344,613.35 and 12,873,174,629.70
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Solution
The fourth proportional to 19,408,896,408.90, 29,113,344,613.35 and 12,873,174,629.70 is: 19,309,761,944.55
Step by Step Solution
- Step 1: Write the proportion equation
19,408,896,408.90 : 29,113,344,613.35 = 12,873,174,629.70 : x - Step 2: Convert to fraction form
19,408,896,408.90/29,113,344,613.35 = 12,873,174,629.70/x - Step 3: Cross multiply
19,408,896,408.90x = 29,113,344,613.35 × 12,873,174,629.70 - Step 4: Simplify right side
19,408,896,408.90x = 374,781,169,262,290,403,328 - Step 5: Solve for x
x = 374,781,169,262,290,403,328/19,408,896,408.90 - Step 6: Final answer
x = 19,309,761,944.55
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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.