Home / 31,513,117.60-47,243,432.40-13,331,274.40

Finding the Fourth Proportional to 31,513,117.60, 47,243,432.40 and 13,331,274.40

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Solution

The fourth proportional to 31,513,117.60, 47,243,432.40 and 13,331,274.40 is: 19,985,809.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,513,117.60 : 47,243,432.40 = 13,331,274.40 : x
  2. Step 2: Convert to fraction form
    31,513,117.60/47,243,432.40 = 13,331,274.40/x
  3. Step 3: Cross multiply
    31,513,117.60x = 47,243,432.40 × 13,331,274.40
  4. Step 4: Simplify right side
    31,513,117.60x = 629,815,160,922,250.50
  5. Step 5: Solve for x
    x = 629,815,160,922,250.50/31,513,117.60
  6. Step 6: Final answer
    x = 19,985,809.37

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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.