Finding the Fourth Proportional to 339,133,419.80, 508,700,129.70 and 83,831,787.80
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Solution
The fourth proportional to 339,133,419.80, 508,700,129.70 and 83,831,787.80 is: 125,747,681.70
Step by Step Solution
- Step 1: Write the proportion equation
339,133,419.80 : 508,700,129.70 = 83,831,787.80 : x - Step 2: Convert to fraction form
339,133,419.80/508,700,129.70 = 83,831,787.80/x - Step 3: Cross multiply
339,133,419.80x = 508,700,129.70 × 83,831,787.80 - Step 4: Simplify right side
339,133,419.80x = 42,645,241,326,842,872 - Step 5: Solve for x
x = 42,645,241,326,842,872/339,133,419.80 - Step 6: Final answer
x = 125,747,681.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.