Finding the Fourth Proportional to 77,225,681.48, 115,782,358.23 and 36,264,013.47
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Solution
The fourth proportional to 77,225,681.48, 115,782,358.23 and 36,264,013.47 is: 54,369,646.45
Step by Step Solution
- Step 1: Write the proportion equation
77,225,681.48 : 115,782,358.23 = 36,264,013.47 : x - Step 2: Convert to fraction form
77,225,681.48/115,782,358.23 = 36,264,013.47/x - Step 3: Cross multiply
77,225,681.48x = 115,782,358.23 × 36,264,013.47 - Step 4: Simplify right side
77,225,681.48x = 4,198,732,998,441,085.50 - Step 5: Solve for x
x = 4,198,732,998,441,085.50/77,225,681.48 - Step 6: Final answer
x = 54,369,646.45
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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.