Finding the Fourth Proportional to 1,201,586,832.36, 1,802,583,746.14 and 414,426,756.72
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Solution
The fourth proportional to 1,201,586,832.36, 1,802,583,746.14 and 414,426,756.72 is: 621,710,321.31
Step by Step Solution
- Step 1: Write the proportion equation
1,201,586,832.36 : 1,802,583,746.14 = 414,426,756.72 : x - Step 2: Convert to fraction form
1,201,586,832.36/1,802,583,746.14 = 414,426,756.72/x - Step 3: Cross multiply
1,201,586,832.36x = 1,802,583,746.14 × 414,426,756.72 - Step 4: Simplify right side
1,201,586,832.36x = 747,038,935,628,988,160 - Step 5: Solve for x
x = 747,038,935,628,988,160/1,201,586,832.36 - Step 6: Final answer
x = 621,710,321.31
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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.