Finding the Fourth Proportional to 139,262,386.97, 192,102,051.16 and 86,960,630.81
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Solution
The fourth proportional to 139,262,386.97, 192,102,051.16 and 86,960,630.81 is: 119,955,688.77
Step by Step Solution
- Step 1: Write the proportion equation
139,262,386.97 : 192,102,051.16 = 86,960,630.81 : x - Step 2: Convert to fraction form
139,262,386.97/192,102,051.16 = 86,960,630.81/x - Step 3: Cross multiply
139,262,386.97x = 192,102,051.16 × 86,960,630.81 - Step 4: Simplify right side
139,262,386.97x = 16,705,315,549,357,448 - Step 5: Solve for x
x = 16,705,315,549,357,448/139,262,386.97 - Step 6: Final answer
x = 119,955,688.77
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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.