Finding the Fourth Proportional to 702,168,239.40, 968,624,798.58 and 434,158,399.31
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Solution
The fourth proportional to 702,168,239.40, 968,624,798.58 and 434,158,399.31 is: 598,911,440.99
Step by Step Solution
- Step 1: Write the proportion equation
702,168,239.40 : 968,624,798.58 = 434,158,399.31 : x - Step 2: Convert to fraction form
702,168,239.40/968,624,798.58 = 434,158,399.31/x - Step 3: Cross multiply
702,168,239.40x = 968,624,798.58 × 434,158,399.31 - Step 4: Simplify right side
702,168,239.40x = 420,536,592,081,123,840 - Step 5: Solve for x
x = 420,536,592,081,123,840/702,168,239.40 - Step 6: Final answer
x = 598,911,440.99
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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.