Finding the Fourth Proportional to 631,230,743.73, 871,125,328.71 and 352,772,259.06
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Solution
The fourth proportional to 631,230,743.73, 871,125,328.71 and 352,772,259.06 is: 486,840,752.27
Step by Step Solution
- Step 1: Write the proportion equation
631,230,743.73 : 871,125,328.71 = 352,772,259.06 : x - Step 2: Convert to fraction form
631,230,743.73/871,125,328.71 = 352,772,259.06/x - Step 3: Cross multiply
631,230,743.73x = 871,125,328.71 × 352,772,259.06 - Step 4: Simplify right side
631,230,743.73x = 307,308,850,133,411,776 - Step 5: Solve for x
x = 307,308,850,133,411,776/631,230,743.73 - Step 6: Final answer
x = 486,840,752.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.