Finding the Fourth Proportional to 139,655,323.71, 192,709,848.18 and 86,001,455.49
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Solution
The fourth proportional to 139,655,323.71, 192,709,848.18 and 86,001,455.49 is: 118,673,080.20
Step by Step Solution
- Step 1: Write the proportion equation
139,655,323.71 : 192,709,848.18 = 86,001,455.49 : x - Step 2: Convert to fraction form
139,655,323.71/192,709,848.18 = 86,001,455.49/x - Step 3: Cross multiply
139,655,323.71x = 192,709,848.18 × 86,001,455.49 - Step 4: Simplify right side
139,655,323.71x = 16,573,327,430,736,928 - Step 5: Solve for x
x = 16,573,327,430,736,928/139,655,323.71 - Step 6: Final answer
x = 118,673,080.20
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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.