Home / 210,009,614.70-315,014,422.05-190,861,992.30

Finding the Fourth Proportional to 210,009,614.70, 315,014,422.05 and 190,861,992.30

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Solution

The fourth proportional to 210,009,614.70, 315,014,422.05 and 190,861,992.30 is: 286,292,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,009,614.70 : 315,014,422.05 = 190,861,992.30 : x
  2. Step 2: Convert to fraction form
    210,009,614.70/315,014,422.05 = 190,861,992.30/x
  3. Step 3: Cross multiply
    210,009,614.70x = 315,014,422.05 × 190,861,992.30
  4. Step 4: Simplify right side
    210,009,614.70x = 60,124,280,195,696,056
  5. Step 5: Solve for x
    x = 60,124,280,195,696,056/210,009,614.70
  6. Step 6: Final answer
    x = 286,292,988.45

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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.