Finding the Fourth Proportional to 1,130,585,040.68, 1,695,878,176.14 and 354,291,457.28
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Solution
The fourth proportional to 1,130,585,040.68, 1,695,878,176.14 and 354,291,457.28 is: 531,437,378.68
Step by Step Solution
- Step 1: Write the proportion equation
1,130,585,040.68 : 1,695,878,176.14 = 354,291,457.28 : x - Step 2: Convert to fraction form
1,130,585,040.68/1,695,878,176.14 = 354,291,457.28/x - Step 3: Cross multiply
1,130,585,040.68x = 1,695,878,176.14 × 354,291,457.28 - Step 4: Simplify right side
1,130,585,040.68x = 600,835,150,385,509,760 - Step 5: Solve for x
x = 600,835,150,385,509,760/1,130,585,040.68 - Step 6: Final answer
x = 531,437,378.68
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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.