Finding the Fourth Proportional to 2,125,765,893.60, 3,188,648,840.40 and 961,272,374.40
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Solution
The fourth proportional to 2,125,765,893.60, 3,188,648,840.40 and 961,272,374.40 is: 1,441,908,561.60
Step by Step Solution
- Step 1: Write the proportion equation
2,125,765,893.60 : 3,188,648,840.40 = 961,272,374.40 : x - Step 2: Convert to fraction form
2,125,765,893.60/3,188,648,840.40 = 961,272,374.40/x - Step 3: Cross multiply
2,125,765,893.60x = 3,188,648,840.40 × 961,272,374.40 - Step 4: Simplify right side
2,125,765,893.60x = 3,065,160,041,939,114,496 - Step 5: Solve for x
x = 3,065,160,041,939,114,496/2,125,765,893.60 - Step 6: Final answer
x = 1,441,908,561.60
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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.