Finding the Fourth Proportional to 747,492,078.30, 1,121,238,117.45 and 359,221,283.70
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Solution
The fourth proportional to 747,492,078.30, 1,121,238,117.45 and 359,221,283.70 is: 538,831,925.55
Step by Step Solution
- Step 1: Write the proportion equation
747,492,078.30 : 1,121,238,117.45 = 359,221,283.70 : x - Step 2: Convert to fraction form
747,492,078.30/1,121,238,117.45 = 359,221,283.70/x - Step 3: Cross multiply
747,492,078.30x = 1,121,238,117.45 × 359,221,283.70 - Step 4: Simplify right side
747,492,078.30x = 402,772,595,883,760,384 - Step 5: Solve for x
x = 402,772,595,883,760,384/747,492,078.30 - Step 6: Final answer
x = 538,831,925.55
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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.