Home / 20,712,133.60-31,068,200.40-18,696,594.40

Finding the Fourth Proportional to 20,712,133.60, 31,068,200.40 and 18,696,594.40

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Solution

The fourth proportional to 20,712,133.60, 31,068,200.40 and 18,696,594.40 is: 28,044,891.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,133.60 : 31,068,200.40 = 18,696,594.40 : x
  2. Step 2: Convert to fraction form
    20,712,133.60/31,068,200.40 = 18,696,594.40/x
  3. Step 3: Cross multiply
    20,712,133.60x = 31,068,200.40 × 18,696,594.40
  4. Step 4: Simplify right side
    20,712,133.60x = 580,869,541,616,717.62
  5. Step 5: Solve for x
    x = 580,869,541,616,717.62/20,712,133.60
  6. Step 6: Final answer
    x = 28,044,891.60

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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.