Home / 31,651,686.40-47,477,529.60-18,897,102.40

Finding the Fourth Proportional to 31,651,686.40, 47,477,529.60 and 18,897,102.40

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Solution

The fourth proportional to 31,651,686.40, 47,477,529.60 and 18,897,102.40 is: 28,345,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,651,686.40 : 47,477,529.60 = 18,897,102.40 : x
  2. Step 2: Convert to fraction form
    31,651,686.40/47,477,529.60 = 18,897,102.40/x
  3. Step 3: Cross multiply
    31,651,686.40x = 47,477,529.60 × 18,897,102.40
  4. Step 4: Simplify right side
    31,651,686.40x = 897,187,738,550,231
  5. Step 5: Solve for x
    x = 897,187,738,550,231/31,651,686.40
  6. Step 6: Final answer
    x = 28,345,653.60

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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.