Finding the Fourth Proportional to 70,672,943.97, 106,011,777.90 and 19,550,681.73
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Solution
The fourth proportional to 70,672,943.97, 106,011,777.90 and 19,550,681.73 is: 29,326,675.99
Step by Step Solution
- Step 1: Write the proportion equation
70,672,943.97 : 106,011,777.90 = 19,550,681.73 : x - Step 2: Convert to fraction form
70,672,943.97/106,011,777.90 = 19,550,681.73/x - Step 3: Cross multiply
70,672,943.97x = 106,011,777.90 × 19,550,681.73 - Step 4: Simplify right side
70,672,943.97x = 2,072,602,529,354,348 - Step 5: Solve for x
x = 2,072,602,529,354,348/70,672,943.97 - Step 6: Final answer
x = 29,326,675.99
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1.5x scale
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.