Finding the Fourth Proportional to 708,617,863.20, 1,062,926,794.80 and 417,185,824.80
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Solution
The fourth proportional to 708,617,863.20, 1,062,926,794.80 and 417,185,824.80 is: 625,778,737.20
Step by Step Solution
- Step 1: Write the proportion equation
708,617,863.20 : 1,062,926,794.80 = 417,185,824.80 : x - Step 2: Convert to fraction form
708,617,863.20/1,062,926,794.80 = 417,185,824.80/x - Step 3: Cross multiply
708,617,863.20x = 1,062,926,794.80 × 417,185,824.80 - Step 4: Simplify right side
708,617,863.20x = 443,437,991,590,658,368 - Step 5: Solve for x
x = 443,437,991,590,658,368/708,617,863.20 - Step 6: Final answer
x = 625,778,737.20
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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.