Finding the Fourth Proportional to 663,552,690.80, 995,329,036.20 and 620,554,521.20
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Solution
The fourth proportional to 663,552,690.80, 995,329,036.20 and 620,554,521.20 is: 930,831,781.80
Step by Step Solution
- Step 1: Write the proportion equation
663,552,690.80 : 995,329,036.20 = 620,554,521.20 : x - Step 2: Convert to fraction form
663,552,690.80/995,329,036.20 = 620,554,521.20/x - Step 3: Cross multiply
663,552,690.80x = 995,329,036.20 × 620,554,521.20 - Step 4: Simplify right side
663,552,690.80x = 617,655,933,495,548,544 - Step 5: Solve for x
x = 617,655,933,495,548,544/663,552,690.80 - Step 6: Final answer
x = 930,831,781.80
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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.