Finding the Fourth Proportional to 102,564,048.52, 141,532,780.26 and 56,145,323.08
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Solution
The fourth proportional to 102,564,048.52, 141,532,780.26 and 56,145,323.08 is: 77,477,476.65
Step by Step Solution
- Step 1: Write the proportion equation
102,564,048.52 : 141,532,780.26 = 56,145,323.08 : x - Step 2: Convert to fraction form
102,564,048.52/141,532,780.26 = 56,145,323.08/x - Step 3: Cross multiply
102,564,048.52x = 141,532,780.26 × 56,145,323.08 - Step 4: Simplify right side
102,564,048.52x = 7,946,403,674,108,346 - Step 5: Solve for x
x = 7,946,403,674,108,346/102,564,048.52 - Step 6: Final answer
x = 77,477,476.65
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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.