Home / 620,573,423.76-856,397,924.28-342,124,911.81

Finding the Fourth Proportional to 620,573,423.76, 856,397,924.28 and 342,124,911.81

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Solution

The fourth proportional to 620,573,423.76, 856,397,924.28 and 342,124,911.81 is: 472,136,016.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,573,423.76 : 856,397,924.28 = 342,124,911.81 : x
  2. Step 2: Convert to fraction form
    620,573,423.76/856,397,924.28 = 342,124,911.81/x
  3. Step 3: Cross multiply
    620,573,423.76x = 856,397,924.28 × 342,124,911.81
  4. Step 4: Simplify right side
    620,573,423.76x = 292,995,064,318,562,048
  5. Step 5: Solve for x
    x = 292,995,064,318,562,048/620,573,423.76
  6. Step 6: Final answer
    x = 472,136,016.63

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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.