Finding the Fourth Proportional to 103,593,624.48, 142,962,585.35 and 56,553,206.18
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Solution
The fourth proportional to 103,593,624.48, 142,962,585.35 and 56,553,206.18 is: 78,045,271.66
Step by Step Solution
- Step 1: Write the proportion equation
103,593,624.48 : 142,962,585.35 = 56,553,206.18 : x - Step 2: Convert to fraction form
103,593,624.48/142,962,585.35 = 56,553,206.18/x - Step 3: Cross multiply
103,593,624.48x = 142,962,585.35 × 56,553,206.18 - Step 4: Simplify right side
103,593,624.48x = 8,084,992,564,326,818 - Step 5: Solve for x
x = 8,084,992,564,326,818/103,593,624.48 - Step 6: Final answer
x = 78,045,271.66
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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.