Finding the Fourth Proportional to 382,839,829.98, 528,316,263.99 and 208,999,573.98
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Solution
The fourth proportional to 382,839,829.98, 528,316,263.99 and 208,999,573.98 is: 288,417,937.36
Step by Step Solution
- Step 1: Write the proportion equation
382,839,829.98 : 528,316,263.99 = 208,999,573.98 : x - Step 2: Convert to fraction form
382,839,829.98/528,316,263.99 = 208,999,573.98/x - Step 3: Cross multiply
382,839,829.98x = 528,316,263.99 × 208,999,573.98 - Step 4: Simplify right side
382,839,829.98x = 110,417,874,100,615,216 - Step 5: Solve for x
x = 110,417,874,100,615,216/382,839,829.98 - Step 6: Final answer
x = 288,417,937.36
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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.