Finding the Fourth Proportional to 21,564,004.80, 29,758,101.12 and 11,774,420.40
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Solution
The fourth proportional to 21,564,004.80, 29,758,101.12 and 11,774,420.40 is: 16,248,577.02
Step by Step Solution
- Step 1: Write the proportion equation
21,564,004.80 : 29,758,101.12 = 11,774,420.40 : x - Step 2: Convert to fraction form
21,564,004.80/29,758,101.12 = 11,774,420.40/x - Step 3: Cross multiply
21,564,004.80x = 29,758,101.12 × 11,774,420.40 - Step 4: Simplify right side
21,564,004.80x = 350,384,392,892,590.88 - Step 5: Solve for x
x = 350,384,392,892,590.88/21,564,004.80 - Step 6: Final answer
x = 16,248,577.02
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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.