Home / 517,467,723.20-776,201,584.80-425,634,718.40

Finding the Fourth Proportional to 517,467,723.20, 776,201,584.80 and 425,634,718.40

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Solution

The fourth proportional to 517,467,723.20, 776,201,584.80 and 425,634,718.40 is: 638,452,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,467,723.20 : 776,201,584.80 = 425,634,718.40 : x
  2. Step 2: Convert to fraction form
    517,467,723.20/776,201,584.80 = 425,634,718.40/x
  3. Step 3: Cross multiply
    517,467,723.20x = 776,201,584.80 × 425,634,718.40
  4. Step 4: Simplify right side
    517,467,723.20x = 330,378,342,967,981,696
  5. Step 5: Solve for x
    x = 330,378,342,967,981,696/517,467,723.20
  6. Step 6: Final answer
    x = 638,452,077.60

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1.5x scale

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.