Finding the Fourth Proportional to 1,020,416,545.98, 1,408,219,427.26 and 574,408,688.94
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Solution
The fourth proportional to 1,020,416,545.98, 1,408,219,427.26 and 574,408,688.94 is: 792,709,093.30
Step by Step Solution
- Step 1: Write the proportion equation
1,020,416,545.98 : 1,408,219,427.26 = 574,408,688.94 : x - Step 2: Convert to fraction form
1,020,416,545.98/1,408,219,427.26 = 574,408,688.94/x - Step 3: Cross multiply
1,020,416,545.98x = 1,408,219,427.26 × 574,408,688.94 - Step 4: Simplify right side
1,020,416,545.98x = 808,893,474,952,254,336 - Step 5: Solve for x
x = 808,893,474,952,254,336/1,020,416,545.98 - Step 6: Final answer
x = 792,709,093.30
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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.