Finding the Fourth Proportional to 77,256,427.80, 115,884,641.70 and 23,403,739.80
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Solution
The fourth proportional to 77,256,427.80, 115,884,641.70 and 23,403,739.80 is: 35,105,609.70
Step by Step Solution
- Step 1: Write the proportion equation
77,256,427.80 : 115,884,641.70 = 23,403,739.80 : x - Step 2: Convert to fraction form
77,256,427.80/115,884,641.70 = 23,403,739.80/x - Step 3: Cross multiply
77,256,427.80x = 115,884,641.70 × 23,403,739.80 - Step 4: Simplify right side
77,256,427.80x = 2,712,134,001,163,030 - Step 5: Solve for x
x = 2,712,134,001,163,030/77,256,427.80 - Step 6: Final answer
x = 35,105,609.70
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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.