Finding the Fourth Proportional to 967,712,939.20, 1,451,569,408.80 and 867,943,748.80
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Solution
The fourth proportional to 967,712,939.20, 1,451,569,408.80 and 867,943,748.80 is: 1,301,915,623.20
Step by Step Solution
- Step 1: Write the proportion equation
967,712,939.20 : 1,451,569,408.80 = 867,943,748.80 : x - Step 2: Convert to fraction form
967,712,939.20/1,451,569,408.80 = 867,943,748.80/x - Step 3: Cross multiply
967,712,939.20x = 1,451,569,408.80 × 867,943,748.80 - Step 4: Simplify right side
967,712,939.20x = 1,259,880,594,317,271,552 - Step 5: Solve for x
x = 1,259,880,594,317,271,552/967,712,939.20 - Step 6: Final answer
x = 1,301,915,623.20
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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.