Finding the Fourth Proportional to 907,655,444.20, 1,361,483,166.30 and 778,515,281.20
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Solution
The fourth proportional to 907,655,444.20, 1,361,483,166.30 and 778,515,281.20 is: 1,167,772,921.80
Step by Step Solution
- Step 1: Write the proportion equation
907,655,444.20 : 1,361,483,166.30 = 778,515,281.20 : x - Step 2: Convert to fraction form
907,655,444.20/1,361,483,166.30 = 778,515,281.20/x - Step 3: Cross multiply
907,655,444.20x = 1,361,483,166.30 × 778,515,281.20 - Step 4: Simplify right side
907,655,444.20x = 1,059,935,450,061,110,912 - Step 5: Solve for x
x = 1,059,935,450,061,110,912/907,655,444.20 - Step 6: Final answer
x = 1,167,772,921.80
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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.