Finding the Fourth Proportional to 1,119,121,404.93, 1,544,360,265.86 and 617,319,201.65
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Solution
The fourth proportional to 1,119,121,404.93, 1,544,360,265.86 and 617,319,201.65 is: 851,885,454.22
Step by Step Solution
- Step 1: Write the proportion equation
1,119,121,404.93 : 1,544,360,265.86 = 617,319,201.65 : x - Step 2: Convert to fraction form
1,119,121,404.93/1,544,360,265.86 = 617,319,201.65/x - Step 3: Cross multiply
1,119,121,404.93x = 1,544,360,265.86 × 617,319,201.65 - Step 4: Simplify right side
1,119,121,404.93x = 953,363,246,369,868,544 - Step 5: Solve for x
x = 953,363,246,369,868,544/1,119,121,404.93 - Step 6: Final answer
x = 851,885,454.22
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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.