Home / 210,466,320.36-315,701,971.67-127,486,167.86

Finding the Fourth Proportional to 210,466,320.36, 315,701,971.67 and 127,486,167.86

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Solution

The fourth proportional to 210,466,320.36, 315,701,971.67 and 127,486,167.86 is: 191,230,760.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,466,320.36 : 315,701,971.67 = 127,486,167.86 : x
  2. Step 2: Convert to fraction form
    210,466,320.36/315,701,971.67 = 127,486,167.86/x
  3. Step 3: Cross multiply
    210,466,320.36x = 315,701,971.67 × 127,486,167.86
  4. Step 4: Simplify right side
    210,466,320.36x = 40,247,634,551,838,648
  5. Step 5: Solve for x
    x = 40,247,634,551,838,648/210,466,320.36
  6. Step 6: Final answer
    x = 191,230,760.74

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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.