Finding the Fourth Proportional to 637,781,875.26, 880,138,980.99 and 344,426,443.26
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Solution
The fourth proportional to 637,781,875.26, 880,138,980.99 and 344,426,443.26 is: 475,308,487.99
Step by Step Solution
- Step 1: Write the proportion equation
637,781,875.26 : 880,138,980.99 = 344,426,443.26 : x - Step 2: Convert to fraction form
637,781,875.26/880,138,980.99 = 344,426,443.26/x - Step 3: Cross multiply
637,781,875.26x = 880,138,980.99 × 344,426,443.26 - Step 4: Simplify right side
637,781,875.26x = 303,143,138,796,866,432 - Step 5: Solve for x
x = 303,143,138,796,866,432/637,781,875.26 - Step 6: Final answer
x = 475,308,487.99
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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.