Finding the Fourth Proportional to 420,712,701.30, 631,100,772.57 and 125,584,507.74
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Solution
The fourth proportional to 420,712,701.30, 631,100,772.57 and 125,584,507.74 is: 188,386,230.35
Step by Step Solution
- Step 1: Write the proportion equation
420,712,701.30 : 631,100,772.57 = 125,584,507.74 : x - Step 2: Convert to fraction form
420,712,701.30/631,100,772.57 = 125,584,507.74/x - Step 3: Cross multiply
420,712,701.30x = 631,100,772.57 × 125,584,507.74 - Step 4: Simplify right side
420,712,701.30x = 79,256,479,857,537,152 - Step 5: Solve for x
x = 79,256,479,857,537,152/420,712,701.30 - Step 6: Final answer
x = 188,386,230.35
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.