Finding the Fourth Proportional to 1,563,551,283.60, 2,157,216,938.28 and 903,260,641.68
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Solution
The fourth proportional to 1,563,551,283.60, 2,157,216,938.28 and 903,260,641.68 is: 1,246,220,176.05
Step by Step Solution
- Step 1: Write the proportion equation
1,563,551,283.60 : 2,157,216,938.28 = 903,260,641.68 : x - Step 2: Convert to fraction form
1,563,551,283.60/2,157,216,938.28 = 903,260,641.68/x - Step 3: Cross multiply
1,563,551,283.60x = 2,157,216,938.28 × 903,260,641.68 - Step 4: Simplify right side
1,563,551,283.60x = 1,948,529,155,913,757,952 - Step 5: Solve for x
x = 1,948,529,155,913,757,952/1,563,551,283.60 - Step 6: Final answer
x = 1,246,220,176.05
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1.5x scale
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.