Finding the Fourth Proportional to 85,430,488.80, 128,133,291.60 and 24,839,896.80
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Solution
The fourth proportional to 85,430,488.80, 128,133,291.60 and 24,839,896.80 is: 37,256,227.66
Step by Step Solution
- Step 1: Write the proportion equation
85,430,488.80 : 128,133,291.60 = 24,839,896.80 : x - Step 2: Convert to fraction form
85,430,488.80/128,133,291.60 = 24,839,896.80/x - Step 3: Cross multiply
85,430,488.80x = 128,133,291.60 × 24,839,896.80 - Step 4: Simplify right side
85,430,488.80x = 3,182,817,739,988,307 - Step 5: Solve for x
x = 3,182,817,739,988,307/85,430,488.80 - Step 6: Final answer
x = 37,256,227.66
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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.