Finding the Fourth Proportional to 909,792,015.40, 1,364,688,023.10 and 896,187,125.80
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Solution
The fourth proportional to 909,792,015.40, 1,364,688,023.10 and 896,187,125.80 is: 1,344,280,688.70
Step by Step Solution
- Step 1: Write the proportion equation
909,792,015.40 : 1,364,688,023.10 = 896,187,125.80 : x - Step 2: Convert to fraction form
909,792,015.40/1,364,688,023.10 = 896,187,125.80/x - Step 3: Cross multiply
909,792,015.40x = 1,364,688,023.10 × 896,187,125.80 - Step 4: Simplify right side
909,792,015.40x = 1,223,015,837,035,672,832 - Step 5: Solve for x
x = 1,223,015,837,035,672,832/909,792,015.40 - Step 6: Final answer
x = 1,344,280,688.70
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Double scale
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Similar ratio
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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.