Home / 421,459,834.26-631,971,922.10-185,012,580.77

Finding the Fourth Proportional to 421,459,834.26, 631,971,922.10 and 185,012,580.77

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Solution

The fourth proportional to 421,459,834.26, 631,971,922.10 and 185,012,580.77 is: 277,423,248.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,459,834.26 : 631,971,922.10 = 185,012,580.77 : x
  2. Step 2: Convert to fraction form
    421,459,834.26/631,971,922.10 = 185,012,580.77/x
  3. Step 3: Cross multiply
    421,459,834.26x = 631,971,922.10 × 185,012,580.77
  4. Step 4: Simplify right side
    421,459,834.26x = 116,922,756,280,183,376
  5. Step 5: Solve for x
    x = 116,922,756,280,183,376/421,459,834.26
  6. Step 6: Final answer
    x = 277,423,248.37

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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.