Home / 981,182,661.90-1,471,019,632.11-507,974,425.71

Finding the Fourth Proportional to 981,182,661.90, 1,471,019,632.11 and 507,974,425.71

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Solution

The fourth proportional to 981,182,661.90, 1,471,019,632.11 and 507,974,425.71 is: 761,571,093.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,182,661.90 : 1,471,019,632.11 = 507,974,425.71 : x
  2. Step 2: Convert to fraction form
    981,182,661.90/1,471,019,632.11 = 507,974,425.71/x
  3. Step 3: Cross multiply
    981,182,661.90x = 1,471,019,632.11 × 507,974,425.71
  4. Step 4: Simplify right side
    981,182,661.90x = 747,240,352,829,212,672
  5. Step 5: Solve for x
    x = 747,240,352,829,212,672/981,182,661.90
  6. Step 6: Final answer
    x = 761,571,093.58

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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.