Home / 486,020,325.53-670,712,105.57-285,197,284.53

Finding the Fourth Proportional to 486,020,325.53, 670,712,105.57 and 285,197,284.53

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Solution

The fourth proportional to 486,020,325.53, 670,712,105.57 and 285,197,284.53 is: 393,574,632.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,020,325.53 : 670,712,105.57 = 285,197,284.53 : x
  2. Step 2: Convert to fraction form
    486,020,325.53/670,712,105.57 = 285,197,284.53/x
  3. Step 3: Cross multiply
    486,020,325.53x = 670,712,105.57 × 285,197,284.53
  4. Step 4: Simplify right side
    486,020,325.53x = 191,285,271,208,536,704
  5. Step 5: Solve for x
    x = 191,285,271,208,536,704/486,020,325.53
  6. Step 6: Final answer
    x = 393,574,632.91

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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.