Home / 20,853,085,390.60-31,281,139,740.30-12,554,102,734.60

Finding the Fourth Proportional to 20,853,085,390.60, 31,281,139,740.30 and 12,554,102,734.60

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Solution

The fourth proportional to 20,853,085,390.60, 31,281,139,740.30 and 12,554,102,734.60 is: 18,832,064,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,085,390.60 : 31,281,139,740.30 = 12,554,102,734.60 : x
  2. Step 2: Convert to fraction form
    20,853,085,390.60/31,281,139,740.30 = 12,554,102,734.60/x
  3. Step 3: Cross multiply
    20,853,085,390.60x = 31,281,139,740.30 × 12,554,102,734.60
  4. Step 4: Simplify right side
    20,853,085,390.60x = 392,706,641,955,104,948,224
  5. Step 5: Solve for x
    x = 392,706,641,955,104,948,224/20,853,085,390.60
  6. Step 6: Final answer
    x = 18,832,064,157.38

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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.