Home / 20,710,760.34-31,066,139.61-19,675,142.40

Finding the Fourth Proportional to 20,710,760.34, 31,066,139.61 and 19,675,142.40

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Solution

The fourth proportional to 20,710,760.34, 31,066,139.61 and 19,675,142.40 is: 29,512,712.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,760.34 : 31,066,139.61 = 19,675,142.40 : x
  2. Step 2: Convert to fraction form
    20,710,760.34/31,066,139.61 = 19,675,142.40/x
  3. Step 3: Cross multiply
    20,710,760.34x = 31,066,139.61 × 19,675,142.40
  4. Step 4: Simplify right side
    20,710,760.34x = 611,230,720,645,030.38
  5. Step 5: Solve for x
    x = 611,230,720,645,030.38/20,710,760.34
  6. Step 6: Final answer
    x = 29,512,712.75

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1.5x scale

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.