Finding the Fourth Proportional to 7,201,974,323.60, 9,938,842,232.67 and 3,942,965,619.94
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Solution
The fourth proportional to 7,201,974,323.60, 9,938,842,232.67 and 3,942,965,619.94 is: 5,441,356,975.82
Step by Step Solution
- Step 1: Write the proportion equation
7,201,974,323.60 : 9,938,842,232.67 = 3,942,965,619.94 : x - Step 2: Convert to fraction form
7,201,974,323.60/9,938,842,232.67 = 3,942,965,619.94/x - Step 3: Cross multiply
7,201,974,323.60x = 9,938,842,232.67 × 3,942,965,619.94 - Step 4: Simplify right side
7,201,974,323.60x = 39,188,513,225,425,518,592 - Step 5: Solve for x
x = 39,188,513,225,425,518,592/7,201,974,323.60 - Step 6: Final answer
x = 5,441,356,975.82
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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.