Home / 231,013,923.80-318,814,856.09-130,507,502.22

Finding the Fourth Proportional to 231,013,923.80, 318,814,856.09 and 130,507,502.22

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Solution

The fourth proportional to 231,013,923.80, 318,814,856.09 and 130,507,502.22 is: 180,109,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,013,923.80 : 318,814,856.09 = 130,507,502.22 : x
  2. Step 2: Convert to fraction form
    231,013,923.80/318,814,856.09 = 130,507,502.22/x
  3. Step 3: Cross multiply
    231,013,923.80x = 318,814,856.09 × 130,507,502.22
  4. Step 4: Simplify right side
    231,013,923.80x = 41,607,730,538,282,112
  5. Step 5: Solve for x
    x = 41,607,730,538,282,112/231,013,923.80
  6. Step 6: Final answer
    x = 180,109,189.33

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1.5x scale

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.