Finding the Fourth Proportional to 608,124,313.70, 912,186,470.55 and 531,596,809.70
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Solution
The fourth proportional to 608,124,313.70, 912,186,470.55 and 531,596,809.70 is: 797,395,214.55
Step by Step Solution
- Step 1: Write the proportion equation
608,124,313.70 : 912,186,470.55 = 531,596,809.70 : x - Step 2: Convert to fraction form
608,124,313.70/912,186,470.55 = 531,596,809.70/x - Step 3: Cross multiply
608,124,313.70x = 912,186,470.55 × 531,596,809.70 - Step 4: Simplify right side
608,124,313.70x = 484,915,417,595,882,944 - Step 5: Solve for x
x = 484,915,417,595,882,944/608,124,313.70 - Step 6: Final answer
x = 797,395,214.55
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Double scale
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Similar ratio
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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.