Finding the Fourth Proportional to 19,765,865.70, 29,646,064.80 and 6,128,389.80
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Solution
The fourth proportional to 19,765,865.70, 29,646,064.80 and 6,128,389.80 is: 9,191,737.10
Step by Step Solution
- Step 1: Write the proportion equation
19,765,865.70 : 29,646,064.80 = 6,128,389.80 : x - Step 2: Convert to fraction form
19,765,865.70/29,646,064.80 = 6,128,389.80/x - Step 3: Cross multiply
19,765,865.70x = 29,646,064.80 × 6,128,389.80 - Step 4: Simplify right side
19,765,865.70x = 181,682,641,130,459.03 - Step 5: Solve for x
x = 181,682,641,130,459.03/19,765,865.70 - Step 6: Final answer
x = 9,191,737.10
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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.