Finding the Fourth Proportional to 487,060,320.11, 730,712,296.09 and 142,013,947.09
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Solution
The fourth proportional to 487,060,320.11, 730,712,296.09 and 142,013,947.09 is: 213,056,438.95
Step by Step Solution
- Step 1: Write the proportion equation
487,060,320.11 : 730,712,296.09 = 142,013,947.09 : x - Step 2: Convert to fraction form
487,060,320.11/730,712,296.09 = 142,013,947.09/x - Step 3: Cross multiply
487,060,320.11x = 730,712,296.09 × 142,013,947.09 - Step 4: Simplify right side
487,060,320.11x = 103,771,337,354,937,680 - Step 5: Solve for x
x = 103,771,337,354,937,680/487,060,320.11 - Step 6: Final answer
x = 213,056,438.95
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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.