Finding the Fourth Proportional to 412,657,564.16, 618,963,946.24 and 125,420,833.28
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Solution
The fourth proportional to 412,657,564.16, 618,963,946.24 and 125,420,833.28 is: 188,124,441.79
Step by Step Solution
- Step 1: Write the proportion equation
412,657,564.16 : 618,963,946.24 = 125,420,833.28 : x - Step 2: Convert to fraction form
412,657,564.16/618,963,946.24 = 125,420,833.28/x - Step 3: Cross multiply
412,657,564.16x = 618,963,946.24 × 125,420,833.28 - Step 4: Simplify right side
412,657,564.16x = 77,630,973,907,697,920 - Step 5: Solve for x
x = 77,630,973,907,697,920/412,657,564.16 - Step 6: Final answer
x = 188,124,441.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.