Finding the Fourth Proportional to 608,124,311.20, 912,186,466.80 and 531,596,807.20
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Solution
The fourth proportional to 608,124,311.20, 912,186,466.80 and 531,596,807.20 is: 797,395,210.80
Step by Step Solution
- Step 1: Write the proportion equation
608,124,311.20 : 912,186,466.80 = 531,596,807.20 : x - Step 2: Convert to fraction form
608,124,311.20/912,186,466.80 = 531,596,807.20/x - Step 3: Cross multiply
608,124,311.20x = 912,186,466.80 × 531,596,807.20 - Step 4: Simplify right side
608,124,311.20x = 484,915,413,321,928,768 - Step 5: Solve for x
x = 484,915,413,321,928,768/608,124,311.20 - Step 6: Final answer
x = 797,395,210.80
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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.