Finding the Fourth Proportional to 918,447,423.80, 1,377,671,135.70 and 335,988,087.80
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Solution
The fourth proportional to 918,447,423.80, 1,377,671,135.70 and 335,988,087.80 is: 503,982,131.70
Step by Step Solution
- Step 1: Write the proportion equation
918,447,423.80 : 1,377,671,135.70 = 335,988,087.80 : x - Step 2: Convert to fraction form
918,447,423.80/1,377,671,135.70 = 335,988,087.80/x - Step 3: Cross multiply
918,447,423.80x = 1,377,671,135.70 × 335,988,087.80 - Step 4: Simplify right side
918,447,423.80x = 462,881,090,501,097,344 - Step 5: Solve for x
x = 462,881,090,501,097,344/918,447,423.80 - Step 6: Final answer
x = 503,982,131.70
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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.