Finding the Fourth Proportional to 291,935,442.02, 402,871,977.70 and 157,973,359.46
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Solution
The fourth proportional to 291,935,442.02, 402,871,977.70 and 157,973,359.46 is: 218,003,813.82
Step by Step Solution
- Step 1: Write the proportion equation
291,935,442.02 : 402,871,977.70 = 157,973,359.46 : x - Step 2: Convert to fraction form
291,935,442.02/402,871,977.70 = 157,973,359.46/x - Step 3: Cross multiply
291,935,442.02x = 402,871,977.70 × 157,973,359.46 - Step 4: Simplify right side
291,935,442.02x = 63,643,039,747,153,912 - Step 5: Solve for x
x = 63,643,039,747,153,912/291,935,442.02 - Step 6: Final answer
x = 218,003,813.82
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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.