Finding the Fourth Proportional to 873,220,842.63, 1,205,026,348.40 and 476,724,669.95
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Solution
The fourth proportional to 873,220,842.63, 1,205,026,348.40 and 476,724,669.95 is: 657,869,991.39
Step by Step Solution
- Step 1: Write the proportion equation
873,220,842.63 : 1,205,026,348.40 = 476,724,669.95 : x - Step 2: Convert to fraction form
873,220,842.63/1,205,026,348.40 = 476,724,669.95/x - Step 3: Cross multiply
873,220,842.63x = 1,205,026,348.40 × 476,724,669.95 - Step 4: Simplify right side
873,220,842.63x = 574,465,788,224,484,160 - Step 5: Solve for x
x = 574,465,788,224,484,160/873,220,842.63 - Step 6: Final answer
x = 657,869,991.39
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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.