Finding the Fourth Proportional to 804,817,817.60, 1,207,226,726.40 and 668,768,921.60
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Solution
The fourth proportional to 804,817,817.60, 1,207,226,726.40 and 668,768,921.60 is: 1,003,153,382.40
Step by Step Solution
- Step 1: Write the proportion equation
804,817,817.60 : 1,207,226,726.40 = 668,768,921.60 : x - Step 2: Convert to fraction form
804,817,817.60/1,207,226,726.40 = 668,768,921.60/x - Step 3: Cross multiply
804,817,817.60x = 1,207,226,726.40 × 668,768,921.60 - Step 4: Simplify right side
804,817,817.60x = 807,355,715,941,226,368 - Step 5: Solve for x
x = 807,355,715,941,226,368/804,817,817.60 - Step 6: Final answer
x = 1,003,153,382.40
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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.