Finding the Fourth Proportional to 628,883,889.24, 867,924,347.16 and 378,069,479.40
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Solution
The fourth proportional to 628,883,889.24, 867,924,347.16 and 378,069,479.40 is: 521,774,705.48
Step by Step Solution
- Step 1: Write the proportion equation
628,883,889.24 : 867,924,347.16 = 378,069,479.40 : x - Step 2: Convert to fraction form
628,883,889.24/867,924,347.16 = 378,069,479.40/x - Step 3: Cross multiply
628,883,889.24x = 867,924,347.16 × 378,069,479.40 - Step 4: Simplify right side
628,883,889.24x = 328,135,706,089,366,016 - Step 5: Solve for x
x = 328,135,706,089,366,016/628,883,889.24 - Step 6: Final answer
x = 521,774,705.48
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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.