Finding the Fourth Proportional to 747,339,772.80, 1,121,009,659.20 and 436,127,923.20
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Solution
The fourth proportional to 747,339,772.80, 1,121,009,659.20 and 436,127,923.20 is: 654,191,884.80
Step by Step Solution
- Step 1: Write the proportion equation
747,339,772.80 : 1,121,009,659.20 = 436,127,923.20 : x - Step 2: Convert to fraction form
747,339,772.80/1,121,009,659.20 = 436,127,923.20/x - Step 3: Cross multiply
747,339,772.80x = 1,121,009,659.20 × 436,127,923.20 - Step 4: Simplify right side
747,339,772.80x = 488,903,614,554,035,776 - Step 5: Solve for x
x = 488,903,614,554,035,776/747,339,772.80 - Step 6: Final answer
x = 654,191,884.80
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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.