Finding the Fourth Proportional to 812,021,737.23, 1,120,559,991.30 and 440,735,796.99
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Solution
The fourth proportional to 812,021,737.23, 1,120,559,991.30 and 440,735,796.99 is: 608,199,113.64
Step by Step Solution
- Step 1: Write the proportion equation
812,021,737.23 : 1,120,559,991.30 = 440,735,796.99 : x - Step 2: Convert to fraction form
812,021,737.23/1,120,559,991.30 = 440,735,796.99/x - Step 3: Cross multiply
812,021,737.23x = 1,120,559,991.30 × 440,735,796.99 - Step 4: Simplify right side
812,021,737.23x = 493,870,900,840,712,960 - Step 5: Solve for x
x = 493,870,900,840,712,960/812,021,737.23 - Step 6: Final answer
x = 608,199,113.64
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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.