Finding the Fourth Proportional to 1,132,138,987.56, 1,562,348,602.62 and 637,101,691.20
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Solution
The fourth proportional to 1,132,138,987.56, 1,562,348,602.62 and 637,101,691.20 is: 879,198,532.96
Step by Step Solution
- Step 1: Write the proportion equation
1,132,138,987.56 : 1,562,348,602.62 = 637,101,691.20 : x - Step 2: Convert to fraction form
1,132,138,987.56/1,562,348,602.62 = 637,101,691.20/x - Step 3: Cross multiply
1,132,138,987.56x = 1,562,348,602.62 × 637,101,691.20 - Step 4: Simplify right side
1,132,138,987.56x = 995,374,936,973,158,784 - Step 5: Solve for x
x = 995,374,936,973,158,784/1,132,138,987.56 - Step 6: Final answer
x = 879,198,532.96
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.