Finding the Fourth Proportional to 45,785,420,235.20, 68,678,130,352.80 and 38,438,779,851.20
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Solution
The fourth proportional to 45,785,420,235.20, 68,678,130,352.80 and 38,438,779,851.20 is: 57,658,169,776.80
Step by Step Solution
- Step 1: Write the proportion equation
45,785,420,235.20 : 68,678,130,352.80 = 38,438,779,851.20 : x - Step 2: Convert to fraction form
45,785,420,235.20/68,678,130,352.80 = 38,438,779,851.20/x - Step 3: Cross multiply
45,785,420,235.20x = 68,678,130,352.80 × 38,438,779,851.20 - Step 4: Simplify right side
45,785,420,235.20x = 2,639,903,533,223,295,582,208 - Step 5: Solve for x
x = 2,639,903,533,223,295,582,208/45,785,420,235.20 - Step 6: Final answer
x = 57,658,169,776.80
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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.