Finding the Fourth Proportional to 139,929,608.68, 193,108,700.36 and 77,209,775.28
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Solution
The fourth proportional to 139,929,608.68, 193,108,700.36 and 77,209,775.28 is: 106,552,712.47
Step by Step Solution
- Step 1: Write the proportion equation
139,929,608.68 : 193,108,700.36 = 77,209,775.28 : x - Step 2: Convert to fraction form
139,929,608.68/193,108,700.36 = 77,209,775.28/x - Step 3: Cross multiply
139,929,608.68x = 193,108,700.36 × 77,209,775.28 - Step 4: Simplify right side
139,929,608.68x = 14,909,879,359,408,456 - Step 5: Solve for x
x = 14,909,879,359,408,456/139,929,608.68 - Step 6: Final answer
x = 106,552,712.47
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.