Finding the Fourth Proportional to 72,423,095.12, 99,941,877.96 and 39,828,048.08
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Solution
The fourth proportional to 72,423,095.12, 99,941,877.96 and 39,828,048.08 is: 54,961,610.16
Step by Step Solution
- Step 1: Write the proportion equation
72,423,095.12 : 99,941,877.96 = 39,828,048.08 : x - Step 2: Convert to fraction form
72,423,095.12/99,941,877.96 = 39,828,048.08/x - Step 3: Cross multiply
72,423,095.12x = 99,941,877.96 × 39,828,048.08 - Step 4: Simplify right side
72,423,095.12x = 3,980,489,920,596,372 - Step 5: Solve for x
x = 3,980,489,920,596,372/72,423,095.12 - Step 6: Final answer
x = 54,961,610.16
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.