Home / 106,028,657.10-159,042,985.65-78,818,877.90

Finding the Fourth Proportional to 106,028,657.10, 159,042,985.65 and 78,818,877.90

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Solution

The fourth proportional to 106,028,657.10, 159,042,985.65 and 78,818,877.90 is: 118,228,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,028,657.10 : 159,042,985.65 = 78,818,877.90 : x
  2. Step 2: Convert to fraction form
    106,028,657.10/159,042,985.65 = 78,818,877.90/x
  3. Step 3: Cross multiply
    106,028,657.10x = 159,042,985.65 × 78,818,877.90
  4. Step 4: Simplify right side
    106,028,657.10x = 12,535,589,666,798,804
  5. Step 5: Solve for x
    x = 12,535,589,666,798,804/106,028,657.10
  6. Step 6: Final answer
    x = 118,228,316.85

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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.