Home / 13,105,156,969.20-19,657,735,453.80-8,461,354,652.40

Finding the Fourth Proportional to 13,105,156,969.20, 19,657,735,453.80 and 8,461,354,652.40

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Solution

The fourth proportional to 13,105,156,969.20, 19,657,735,453.80 and 8,461,354,652.40 is: 12,692,031,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105,156,969.20 : 19,657,735,453.80 = 8,461,354,652.40 : x
  2. Step 2: Convert to fraction form
    13,105,156,969.20/19,657,735,453.80 = 8,461,354,652.40/x
  3. Step 3: Cross multiply
    13,105,156,969.20x = 19,657,735,453.80 × 8,461,354,652.40
  4. Step 4: Simplify right side
    13,105,156,969.20x = 166,331,071,337,659,039,744
  5. Step 5: Solve for x
    x = 166,331,071,337,659,039,744/13,105,156,969.20
  6. Step 6: Final answer
    x = 12,692,031,978.60

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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.