Finding the Fourth Proportional to 420,713,484.01, 631,101,948.47 and 125,585,291.71
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Solution
The fourth proportional to 420,713,484.01, 631,101,948.47 and 125,585,291.71 is: 188,387,406.89
Step by Step Solution
- Step 1: Write the proportion equation
420,713,484.01 : 631,101,948.47 = 125,585,291.71 : x - Step 2: Convert to fraction form
420,713,484.01/631,101,948.47 = 125,585,291.71/x - Step 3: Cross multiply
420,713,484.01x = 631,101,948.47 × 125,585,291.71 - Step 4: Simplify right side
420,713,484.01x = 79,257,122,296,726,416 - Step 5: Solve for x
x = 79,257,122,296,726,416/420,713,484.01 - Step 6: Final answer
x = 188,387,406.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.