Finding the Fourth Proportional to 1,405,385,487.06, 1,937,011,199.30 and 934,645,678.08
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Solution
The fourth proportional to 1,405,385,487.06, 1,937,011,199.30 and 934,645,678.08 is: 1,288,201,111.00
Step by Step Solution
- Step 1: Write the proportion equation
1,405,385,487.06 : 1,937,011,199.30 = 934,645,678.08 : x - Step 2: Convert to fraction form
1,405,385,487.06/1,937,011,199.30 = 934,645,678.08/x - Step 3: Cross multiply
1,405,385,487.06x = 1,937,011,199.30 × 934,645,678.08 - Step 4: Simplify right side
1,405,385,487.06x = 1,810,419,145,818,302,464 - Step 5: Solve for x
x = 1,810,419,145,818,302,464/1,405,385,487.06 - Step 6: Final answer
x = 1,288,201,111.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.