Finding the Fourth Proportional to 1,908,841,397.58, 2,634,159,851.74 and 1,105,102,785.85
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Solution
The fourth proportional to 1,908,841,397.58, 2,634,159,851.74 and 1,105,102,785.85 is: 1,525,017,947.64
Step by Step Solution
- Step 1: Write the proportion equation
1,908,841,397.58 : 2,634,159,851.74 = 1,105,102,785.85 : x - Step 2: Convert to fraction form
1,908,841,397.58/2,634,159,851.74 = 1,105,102,785.85/x - Step 3: Cross multiply
1,908,841,397.58x = 2,634,159,851.74 × 1,105,102,785.85 - Step 4: Simplify right side
1,908,841,397.58x = 2,911,017,390,516,163,584 - Step 5: Solve for x
x = 2,911,017,390,516,163,584/1,908,841,397.58 - Step 6: Final answer
x = 1,525,017,947.64
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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.