Home / 13,105,156,980.70-19,657,735,471.05-8,461,354,663.90

Finding the Fourth Proportional to 13,105,156,980.70, 19,657,735,471.05 and 8,461,354,663.90

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Solution

The fourth proportional to 13,105,156,980.70, 19,657,735,471.05 and 8,461,354,663.90 is: 12,692,031,995.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105,156,980.70 : 19,657,735,471.05 = 8,461,354,663.90 : x
  2. Step 2: Convert to fraction form
    13,105,156,980.70/19,657,735,471.05 = 8,461,354,663.90/x
  3. Step 3: Cross multiply
    13,105,156,980.70x = 19,657,735,471.05 × 8,461,354,663.90
  4. Step 4: Simplify right side
    13,105,156,980.70x = 166,331,071,709,681,352,704
  5. Step 5: Solve for x
    x = 166,331,071,709,681,352,704/13,105,156,980.70
  6. Step 6: Final answer
    x = 12,692,031,995.85

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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.