Finding the Fourth Proportional to 148,962,715.68, 205,565,323.98 and 86,241,458.28
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Solution
The fourth proportional to 148,962,715.68, 205,565,323.98 and 86,241,458.28 is: 119,011,346.10
Step by Step Solution
- Step 1: Write the proportion equation
148,962,715.68 : 205,565,323.98 = 86,241,458.28 : x - Step 2: Convert to fraction form
148,962,715.68/205,565,323.98 = 86,241,458.28/x - Step 3: Cross multiply
148,962,715.68x = 205,565,323.98 × 86,241,458.28 - Step 4: Simplify right side
148,962,715.68x = 17,728,253,311,835,852 - Step 5: Solve for x
x = 17,728,253,311,835,852/148,962,715.68 - Step 6: Final answer
x = 119,011,346.10
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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.