Finding the Fourth Proportional to 19,539,455.40, 26,967,676.95 and 10,840,430.70
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Solution
The fourth proportional to 19,539,455.40, 26,967,676.95 and 10,840,430.70 is: 14,961,585.53
Step by Step Solution
- Step 1: Write the proportion equation
19,539,455.40 : 26,967,676.95 = 10,840,430.70 : x - Step 2: Convert to fraction form
19,539,455.40/26,967,676.95 = 10,840,430.70/x - Step 3: Cross multiply
19,539,455.40x = 26,967,676.95 × 10,840,430.70 - Step 4: Simplify right side
19,539,455.40x = 292,341,233,116,462.31 - Step 5: Solve for x
x = 292,341,233,116,462.31/19,539,455.40 - Step 6: Final answer
x = 14,961,585.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.