Finding the Fourth Proportional to 716,027,362.09, 988,064,342.98 and 402,701,041.62
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Solution
The fourth proportional to 716,027,362.09, 988,064,342.98 and 402,701,041.62 is: 555,697,395.34
Step by Step Solution
- Step 1: Write the proportion equation
716,027,362.09 : 988,064,342.98 = 402,701,041.62 : x - Step 2: Convert to fraction form
716,027,362.09/988,064,342.98 = 402,701,041.62/x - Step 3: Cross multiply
716,027,362.09x = 988,064,342.98 × 402,701,041.62 - Step 4: Simplify right side
716,027,362.09x = 397,894,540,104,620,160 - Step 5: Solve for x
x = 397,894,540,104,620,160/716,027,362.09 - Step 6: Final answer
x = 555,697,395.34
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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.