Finding the Fourth Proportional to 478,860,438.26, 660,827,112.54 and 258,843,864.26
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Solution
The fourth proportional to 478,860,438.26, 660,827,112.54 and 258,843,864.26 is: 357,204,374.70
Step by Step Solution
- Step 1: Write the proportion equation
478,860,438.26 : 660,827,112.54 = 258,843,864.26 : x - Step 2: Convert to fraction form
478,860,438.26/660,827,112.54 = 258,843,864.26/x - Step 3: Cross multiply
478,860,438.26x = 660,827,112.54 × 258,843,864.26 - Step 4: Simplify right side
478,860,438.26x = 171,051,043,417,631,488 - Step 5: Solve for x
x = 171,051,043,417,631,488/478,860,438.26 - Step 6: Final answer
x = 357,204,374.70
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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.