Finding the Fourth Proportional to 785,496,815.79, 1,178,532,526.10 and 365,518,486.97
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Solution
The fourth proportional to 785,496,815.79, 1,178,532,526.10 and 365,518,486.97 is: 548,411,422.07
Step by Step Solution
- Step 1: Write the proportion equation
785,496,815.79 : 1,178,532,526.10 = 365,518,486.97 : x - Step 2: Convert to fraction form
785,496,815.79/1,178,532,526.10 = 365,518,486.97/x - Step 3: Cross multiply
785,496,815.79x = 1,178,532,526.10 × 365,518,486.97 - Step 4: Simplify right side
785,496,815.79x = 430,775,425,777,283,776 - Step 5: Solve for x
x = 430,775,425,777,283,776/785,496,815.79 - Step 6: Final answer
x = 548,411,422.07
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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.