Finding the Fourth Proportional to 637,781,630.42, 880,138,642.83 and 344,426,198.42
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Solution
The fourth proportional to 637,781,630.42, 880,138,642.83 and 344,426,198.42 is: 475,308,149.96
Step by Step Solution
- Step 1: Write the proportion equation
637,781,630.42 : 880,138,642.83 = 344,426,198.42 : x - Step 2: Convert to fraction form
637,781,630.42/880,138,642.83 = 344,426,198.42/x - Step 3: Cross multiply
637,781,630.42x = 880,138,642.83 × 344,426,198.42 - Step 4: Simplify right side
637,781,630.42x = 303,142,806,832,475,136 - Step 5: Solve for x
x = 303,142,806,832,475,136/637,781,630.42 - Step 6: Final answer
x = 475,308,149.96
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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.