Finding the Fourth Proportional to 153,232,907.90, 211,465,878.93 and 83,622,772.71
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Solution
The fourth proportional to 153,232,907.90, 211,465,878.93 and 83,622,772.71 is: 115,401,863.56
Step by Step Solution
- Step 1: Write the proportion equation
153,232,907.90 : 211,465,878.93 = 83,622,772.71 : x - Step 2: Convert to fraction form
153,232,907.90/211,465,878.93 = 83,622,772.71/x - Step 3: Cross multiply
153,232,907.90x = 211,465,878.93 × 83,622,772.71 - Step 4: Simplify right side
153,232,907.90x = 17,683,363,129,683,768 - Step 5: Solve for x
x = 17,683,363,129,683,768/153,232,907.90 - Step 6: Final answer
x = 115,401,863.56
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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.