Home / 70,721,931.76-106,082,927.10-31,814,939.07

Finding the Fourth Proportional to 70,721,931.76, 106,082,927.10 and 31,814,939.07

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Solution

The fourth proportional to 70,721,931.76, 106,082,927.10 and 31,814,939.07 is: 47,722,421.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,721,931.76 : 106,082,927.10 = 31,814,939.07 : x
  2. Step 2: Convert to fraction form
    70,721,931.76/106,082,927.10 = 31,814,939.07/x
  3. Step 3: Cross multiply
    70,721,931.76x = 106,082,927.10 × 31,814,939.07
  4. Step 4: Simplify right side
    70,721,931.76x = 3,375,021,862,053,751.50
  5. Step 5: Solve for x
    x = 3,375,021,862,053,751.50/70,721,931.76
  6. Step 6: Final answer
    x = 47,722,421.86

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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.