Finding the Fourth Proportional to 42,133,066.80, 63,201,349.80 and 13,378,390.80
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Solution
The fourth proportional to 42,133,066.80, 63,201,349.80 and 13,378,390.80 is: 20,068,141.75
Step by Step Solution
- Step 1: Write the proportion equation
42,133,066.80 : 63,201,349.80 = 13,378,390.80 : x - Step 2: Convert to fraction form
42,133,066.80/63,201,349.80 = 13,378,390.80/x - Step 3: Cross multiply
42,133,066.80x = 63,201,349.80 × 13,378,390.80 - Step 4: Simplify right side
42,133,066.80x = 845,532,356,711,901.88 - Step 5: Solve for x
x = 845,532,356,711,901.88/42,133,066.80 - Step 6: Final answer
x = 20,068,141.75
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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.