Finding the Fourth Proportional to 1,153,838,969.07, 1,592,303,320.41 and 625,202,814.99
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Solution
The fourth proportional to 1,153,838,969.07, 1,592,303,320.41 and 625,202,814.99 is: 862,782,888.19
Step by Step Solution
- Step 1: Write the proportion equation
1,153,838,969.07 : 1,592,303,320.41 = 625,202,814.99 : x - Step 2: Convert to fraction form
1,153,838,969.07/1,592,303,320.41 = 625,202,814.99/x - Step 3: Cross multiply
1,153,838,969.07x = 1,592,303,320.41 × 625,202,814.99 - Step 4: Simplify right side
1,153,838,969.07x = 995,512,518,238,256,000 - Step 5: Solve for x
x = 995,512,518,238,256,000/1,153,838,969.07 - Step 6: Final answer
x = 862,782,888.19
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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.