Finding the Fourth Proportional to 1,513,549,163.60, 2,270,323,745.40 and 697,255,787.60
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Solution
The fourth proportional to 1,513,549,163.60, 2,270,323,745.40 and 697,255,787.60 is: 1,045,883,681.40
Step by Step Solution
- Step 1: Write the proportion equation
1,513,549,163.60 : 2,270,323,745.40 = 697,255,787.60 : x - Step 2: Convert to fraction form
1,513,549,163.60/2,270,323,745.40 = 697,255,787.60/x - Step 3: Cross multiply
1,513,549,163.60x = 2,270,323,745.40 × 697,255,787.60 - Step 4: Simplify right side
1,513,549,163.60x = 1,582,996,371,205,859,072 - Step 5: Solve for x
x = 1,582,996,371,205,859,072/1,513,549,163.60 - Step 6: Final answer
x = 1,045,883,681.40
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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.