Finding the Fourth Proportional to 974,368,986.80, 1,461,553,480.20 and 247,357,698.80
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Solution
The fourth proportional to 974,368,986.80, 1,461,553,480.20 and 247,357,698.80 is: 371,036,548.20
Step by Step Solution
- Step 1: Write the proportion equation
974,368,986.80 : 1,461,553,480.20 = 247,357,698.80 : x - Step 2: Convert to fraction form
974,368,986.80/1,461,553,480.20 = 247,357,698.80/x - Step 3: Cross multiply
974,368,986.80x = 1,461,553,480.20 × 247,357,698.80 - Step 4: Simplify right side
974,368,986.80x = 361,526,505,535,403,392 - Step 5: Solve for x
x = 361,526,505,535,403,392/974,368,986.80 - Step 6: Final answer
x = 371,036,548.20
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Similar ratio
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1.5x scale
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.