Finding the Fourth Proportional to 885,142,367.12, 1,221,477,048.68 and 483,242,374.42
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Solution
The fourth proportional to 885,142,367.12, 1,221,477,048.68 and 483,242,374.42 is: 666,863,875.50
Step by Step Solution
- Step 1: Write the proportion equation
885,142,367.12 : 1,221,477,048.68 = 483,242,374.42 : x - Step 2: Convert to fraction form
885,142,367.12/1,221,477,048.68 = 483,242,374.42/x - Step 3: Cross multiply
885,142,367.12x = 1,221,477,048.68 × 483,242,374.42 - Step 4: Simplify right side
885,142,367.12x = 590,269,469,303,657,216 - Step 5: Solve for x
x = 590,269,469,303,657,216/885,142,367.12 - Step 6: Final answer
x = 666,863,875.50
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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.