Finding the Fourth Proportional to 1,918,587,617.80, 2,877,881,426.70 and 1,102,294,241.80
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Solution
The fourth proportional to 1,918,587,617.80, 2,877,881,426.70 and 1,102,294,241.80 is: 1,653,441,362.70
Step by Step Solution
- Step 1: Write the proportion equation
1,918,587,617.80 : 2,877,881,426.70 = 1,102,294,241.80 : x - Step 2: Convert to fraction form
1,918,587,617.80/2,877,881,426.70 = 1,102,294,241.80/x - Step 3: Cross multiply
1,918,587,617.80x = 2,877,881,426.70 × 1,102,294,241.80 - Step 4: Simplify right side
1,918,587,617.80x = 3,172,272,125,234,578,432 - Step 5: Solve for x
x = 3,172,272,125,234,578,432/1,918,587,617.80 - Step 6: Final answer
x = 1,653,441,362.70
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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.