Home / 381,510,576.60-572,265,864.90-139,141,987.80

Finding the Fourth Proportional to 381,510,576.60, 572,265,864.90 and 139,141,987.80

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Solution

The fourth proportional to 381,510,576.60, 572,265,864.90 and 139,141,987.80 is: 208,712,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,510,576.60 : 572,265,864.90 = 139,141,987.80 : x
  2. Step 2: Convert to fraction form
    381,510,576.60/572,265,864.90 = 139,141,987.80/x
  3. Step 3: Cross multiply
    381,510,576.60x = 572,265,864.90 × 139,141,987.80
  4. Step 4: Simplify right side
    381,510,576.60x = 79,626,209,992,272,256
  5. Step 5: Solve for x
    x = 79,626,209,992,272,256/381,510,576.60
  6. Step 6: Final answer
    x = 208,712,981.70

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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.