Finding the Fourth Proportional to 885,346,354.97, 1,221,336,678.71 and 527,862,011.31
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Solution
The fourth proportional to 885,346,354.97, 1,221,336,678.71 and 527,862,011.31 is: 728,186,468.60
Step by Step Solution
- Step 1: Write the proportion equation
885,346,354.97 : 1,221,336,678.71 = 527,862,011.31 : x - Step 2: Convert to fraction form
885,346,354.97/1,221,336,678.71 = 527,862,011.31/x - Step 3: Cross multiply
885,346,354.97x = 1,221,336,678.71 × 527,862,011.31 - Step 4: Simplify right side
885,346,354.97x = 644,697,235,707,896,448 - Step 5: Solve for x
x = 644,697,235,707,896,448/885,346,354.97 - Step 6: Final answer
x = 728,186,468.60
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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.