Finding the Fourth Proportional to 909,187,658.20, 1,254,648,420.30 and 574,840,147.96
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Solution
The fourth proportional to 909,187,658.20, 1,254,648,420.30 and 574,840,147.96 is: 793,260,089.99
Step by Step Solution
- Step 1: Write the proportion equation
909,187,658.20 : 1,254,648,420.30 = 574,840,147.96 : x - Step 2: Convert to fraction form
909,187,658.20/1,254,648,420.30 = 574,840,147.96/x - Step 3: Cross multiply
909,187,658.20x = 1,254,648,420.30 × 574,840,147.96 - Step 4: Simplify right side
909,187,658.20x = 721,222,283,563,032,320 - Step 5: Solve for x
x = 721,222,283,563,032,320/909,187,658.20 - Step 6: Final answer
x = 793,260,089.99
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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.