Finding the Fourth Proportional to 1,118,257,011.24, 1,543,199,352.36 and 616,454,781.96
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Solution
The fourth proportional to 1,118,257,011.24, 1,543,199,352.36 and 616,454,781.96 is: 850,710,177.28
Step by Step Solution
- Step 1: Write the proportion equation
1,118,257,011.24 : 1,543,199,352.36 = 616,454,781.96 : x - Step 2: Convert to fraction form
1,118,257,011.24/1,543,199,352.36 = 616,454,781.96/x - Step 3: Cross multiply
1,118,257,011.24x = 1,543,199,352.36 × 616,454,781.96 - Step 4: Simplify right side
1,118,257,011.24x = 951,312,620,279,896,960 - Step 5: Solve for x
x = 951,312,620,279,896,960/1,118,257,011.24 - Step 6: Final answer
x = 850,710,177.28
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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.