Finding the Fourth Proportional to 1,177,418,569.84, 1,624,764,415.40 and 648,752,971.24
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Solution
The fourth proportional to 1,177,418,569.84, 1,624,764,415.40 and 648,752,971.24 is: 895,238,761.35
Step by Step Solution
- Step 1: Write the proportion equation
1,177,418,569.84 : 1,624,764,415.40 = 648,752,971.24 : x - Step 2: Convert to fraction form
1,177,418,569.84/1,624,764,415.40 = 648,752,971.24/x - Step 3: Cross multiply
1,177,418,569.84x = 1,624,764,415.40 × 648,752,971.24 - Step 4: Simplify right side
1,177,418,569.84x = 1,054,070,742,055,771,648 - Step 5: Solve for x
x = 1,054,070,742,055,771,648/1,177,418,569.84 - Step 6: Final answer
x = 895,238,761.35
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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.