Finding the Fourth Proportional to 1,119,276,352.16, 1,544,604,107.28 and 624,271,122.08
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Solution
The fourth proportional to 1,119,276,352.16, 1,544,604,107.28 and 624,271,122.08 is: 861,495,677.42
Step by Step Solution
- Step 1: Write the proportion equation
1,119,276,352.16 : 1,544,604,107.28 = 624,271,122.08 : x - Step 2: Convert to fraction form
1,119,276,352.16/1,544,604,107.28 = 624,271,122.08/x - Step 3: Cross multiply
1,119,276,352.16x = 1,544,604,107.28 × 624,271,122.08 - Step 4: Simplify right side
1,119,276,352.16x = 964,251,739,221,062,400 - Step 5: Solve for x
x = 964,251,739,221,062,400/1,119,276,352.16 - Step 6: Final answer
x = 861,495,677.42
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Double scale
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1.5x scale
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.