Finding the Fourth Proportional to 319,122,738.86, 478,698,445.89 and 97,777,862.46
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Solution
The fourth proportional to 319,122,738.86, 478,698,445.89 and 97,777,862.46 is: 146,671,186.67
Step by Step Solution
- Step 1: Write the proportion equation
319,122,738.86 : 478,698,445.89 = 97,777,862.46 : x - Step 2: Convert to fraction form
319,122,738.86/478,698,445.89 = 97,777,862.46/x - Step 3: Cross multiply
319,122,738.86x = 478,698,445.89 × 97,777,862.46 - Step 4: Simplify right side
319,122,738.86x = 46,806,110,802,048,168 - Step 5: Solve for x
x = 46,806,110,802,048,168/319,122,738.86 - Step 6: Final answer
x = 146,671,186.67
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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.