Finding the Fourth Proportional to 429,031,918.22, 643,553,856.07 and 122,324,031.09
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Solution
The fourth proportional to 429,031,918.22, 643,553,856.07 and 122,324,031.09 is: 183,487,751.27
Step by Step Solution
- Step 1: Write the proportion equation
429,031,918.22 : 643,553,856.07 = 122,324,031.09 : x - Step 2: Convert to fraction form
429,031,918.22/643,553,856.07 = 122,324,031.09/x - Step 3: Cross multiply
429,031,918.22x = 643,553,856.07 × 122,324,031.09 - Step 4: Simplify right side
429,031,918.22x = 78,722,101,897,690,256 - Step 5: Solve for x
x = 78,722,101,897,690,256/429,031,918.22 - Step 6: Final answer
x = 183,487,751.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.