Home / 812,503,232.16-1,218,370,646.70-314,746,872.60

Finding the Fourth Proportional to 812,503,232.16, 1,218,370,646.70 and 314,746,872.60

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Solution

The fourth proportional to 812,503,232.16, 1,218,370,646.70 and 314,746,872.60 is: 471,971,477.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,503,232.16 : 1,218,370,646.70 = 314,746,872.60 : x
  2. Step 2: Convert to fraction form
    812,503,232.16/1,218,370,646.70 = 314,746,872.60/x
  3. Step 3: Cross multiply
    812,503,232.16x = 1,218,370,646.70 × 314,746,872.60
  4. Step 4: Simplify right side
    812,503,232.16x = 383,478,350,716,464,576
  5. Step 5: Solve for x
    x = 383,478,350,716,464,576/812,503,232.16
  6. Step 6: Final answer
    x = 471,971,477.21

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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.