Finding the Fourth Proportional to 1,574,402,005.74, 2,172,660,464.25 and 859,937,410.44
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Solution
The fourth proportional to 1,574,402,005.74, 2,172,660,464.25 and 859,937,410.44 is: 1,186,705,813.75
Step by Step Solution
- Step 1: Write the proportion equation
1,574,402,005.74 : 2,172,660,464.25 = 859,937,410.44 : x - Step 2: Convert to fraction form
1,574,402,005.74/2,172,660,464.25 = 859,937,410.44/x - Step 3: Cross multiply
1,574,402,005.74x = 2,172,660,464.25 × 859,937,410.44 - Step 4: Simplify right side
1,574,402,005.74x = 1,868,352,013,392,513,280 - Step 5: Solve for x
x = 1,868,352,013,392,513,280/1,574,402,005.74 - Step 6: Final answer
x = 1,186,705,813.75
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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.