Home / 231,013,923.05-318,814,855.05-130,507,501.47

Finding the Fourth Proportional to 231,013,923.05, 318,814,855.05 and 130,507,501.47

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Solution

The fourth proportional to 231,013,923.05, 318,814,855.05 and 130,507,501.47 is: 180,109,188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,013,923.05 : 318,814,855.05 = 130,507,501.47 : x
  2. Step 2: Convert to fraction form
    231,013,923.05/318,814,855.05 = 130,507,501.47/x
  3. Step 3: Cross multiply
    231,013,923.05x = 318,814,855.05 × 130,507,501.47
  4. Step 4: Simplify right side
    231,013,923.05x = 41,607,730,164,095,712
  5. Step 5: Solve for x
    x = 41,607,730,164,095,712/231,013,923.05
  6. Step 6: Final answer
    x = 180,109,188.29

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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.