Finding the Fourth Proportional to 13,576,232,865.45, 18,736,832,346.36 and 8,223,636,171.99
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Solution
The fourth proportional to 13,576,232,865.45, 18,736,832,346.36 and 8,223,636,171.99 is: 11,349,605,870.72
Step by Step Solution
- Step 1: Write the proportion equation
13,576,232,865.45 : 18,736,832,346.36 = 8,223,636,171.99 : x - Step 2: Convert to fraction form
13,576,232,865.45/18,736,832,346.36 = 8,223,636,171.99/x - Step 3: Cross multiply
13,576,232,865.45x = 18,736,832,346.36 × 8,223,636,171.99 - Step 4: Simplify right side
13,576,232,865.45x = 154,084,892,232,038,350,848 - Step 5: Solve for x
x = 154,084,892,232,038,350,848/13,576,232,865.45 - Step 6: Final answer
x = 11,349,605,870.72
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1.5x scale
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.