Finding the Fourth Proportional to 19,485,681.80, 29,228,522.70 and 18,925,809.80
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Solution
The fourth proportional to 19,485,681.80, 29,228,522.70 and 18,925,809.80 is: 28,388,714.70
Step by Step Solution
- Step 1: Write the proportion equation
19,485,681.80 : 29,228,522.70 = 18,925,809.80 : x - Step 2: Convert to fraction form
19,485,681.80/29,228,522.70 = 18,925,809.80/x - Step 3: Cross multiply
19,485,681.80x = 29,228,522.70 × 18,925,809.80 - Step 4: Simplify right side
19,485,681.80x = 553,173,461,355,182.44 - Step 5: Solve for x
x = 553,173,461,355,182.44/19,485,681.80 - Step 6: Final answer
x = 28,388,714.70
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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.