Finding the Fourth Proportional to 645,596,193.32, 891,197,649.20 and 434,025,727.08
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Solution
The fourth proportional to 645,596,193.32, 891,197,649.20 and 434,025,727.08 is: 599,140,316.61
Step by Step Solution
- Step 1: Write the proportion equation
645,596,193.32 : 891,197,649.20 = 434,025,727.08 : x - Step 2: Convert to fraction form
645,596,193.32/891,197,649.20 = 434,025,727.08/x - Step 3: Cross multiply
645,596,193.32x = 891,197,649.20 × 434,025,727.08 - Step 4: Simplify right side
645,596,193.32x = 386,802,707,666,016,768 - Step 5: Solve for x
x = 386,802,707,666,016,768/645,596,193.32 - Step 6: Final answer
x = 599,140,316.61
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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.