Finding the Fourth Proportional to 977,512,623.99, 1,349,013,539.14 and 554,134,490.96
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Solution
The fourth proportional to 977,512,623.99, 1,349,013,539.14 and 554,134,490.96 is: 764,731,741.01
Step by Step Solution
- Step 1: Write the proportion equation
977,512,623.99 : 1,349,013,539.14 = 554,134,490.96 : x - Step 2: Convert to fraction form
977,512,623.99/1,349,013,539.14 = 554,134,490.96/x - Step 3: Cross multiply
977,512,623.99x = 1,349,013,539.14 × 554,134,490.96 - Step 4: Simplify right side
977,512,623.99x = 747,534,930,801,361,664 - Step 5: Solve for x
x = 747,534,930,801,361,664/977,512,623.99 - Step 6: Final answer
x = 764,731,741.01
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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.