Finding the Fourth Proportional to 70,682,984.80, 106,024,477.20 and 57,246,056.80
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Solution
The fourth proportional to 70,682,984.80, 106,024,477.20 and 57,246,056.80 is: 85,869,085.20
Step by Step Solution
- Step 1: Write the proportion equation
70,682,984.80 : 106,024,477.20 = 57,246,056.80 : x - Step 2: Convert to fraction form
70,682,984.80/106,024,477.20 = 57,246,056.80/x - Step 3: Cross multiply
70,682,984.80x = 106,024,477.20 × 57,246,056.80 - Step 4: Simplify right side
70,682,984.80x = 6,069,483,243,981,505 - Step 5: Solve for x
x = 6,069,483,243,981,505/70,682,984.80 - Step 6: Final answer
x = 85,869,085.20
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1.5x scale
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.