Finding the Fourth Proportional to 1,455,165,753.60, 2,182,767,292.80 and 485,817,369.60
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Solution
The fourth proportional to 1,455,165,753.60, 2,182,767,292.80 and 485,817,369.60 is: 728,732,284.97
Step by Step Solution
- Step 1: Write the proportion equation
1,455,165,753.60 : 2,182,767,292.80 = 485,817,369.60 : x - Step 2: Convert to fraction form
1,455,165,753.60/2,182,767,292.80 = 485,817,369.60/x - Step 3: Cross multiply
1,455,165,753.60x = 2,182,767,292.80 × 485,817,369.60 - Step 4: Simplify right side
1,455,165,753.60x = 1,060,426,264,637,009,152 - Step 5: Solve for x
x = 1,060,426,264,637,009,152/1,455,165,753.60 - Step 6: Final answer
x = 728,732,284.97
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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.