Finding the Fourth Proportional to 19,516,466.16, 26,931,995.52 and 11,256,867.12
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Solution
The fourth proportional to 19,516,466.16, 26,931,995.52 and 11,256,867.12 is: 15,534,056.85
Step by Step Solution
- Step 1: Write the proportion equation
19,516,466.16 : 26,931,995.52 = 11,256,867.12 : x - Step 2: Convert to fraction form
19,516,466.16/26,931,995.52 = 11,256,867.12/x - Step 3: Cross multiply
19,516,466.16x = 26,931,995.52 × 11,256,867.12 - Step 4: Simplify right side
19,516,466.16x = 303,169,894,845,075.25 - Step 5: Solve for x
x = 303,169,894,845,075.25/19,516,466.16 - Step 6: Final answer
x = 15,534,056.85
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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.