Finding the Fourth Proportional to 219,378,879,359.19, 302,745,307,829.07 and 121,722,288,528.94
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Solution
The fourth proportional to 219,378,879,359.19, 302,745,307,829.07 and 121,722,288,528.94 is: 167,978,119,944.80
Step by Step Solution
- Step 1: Write the proportion equation
219,378,879,359.19 : 302,745,307,829.07 = 121,722,288,528.94 : x - Step 2: Convert to fraction form
219,378,879,359.19/302,745,307,829.07 = 121,722,288,528.94/x - Step 3: Cross multiply
219,378,879,359.19x = 302,745,307,829.07 × 121,722,288,528.94 - Step 4: Simplify right side
219,378,879,359.19x = 36,850,851,710,352,817,651,712 - Step 5: Solve for x
x = 36,850,851,710,352,817,651,712/219,378,879,359.19 - Step 6: Final answer
x = 167,978,119,944.80
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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.