Home / 103,463,998.10-155,140,009.95-42,885,847.70

Finding the Fourth Proportional to 103,463,998.10, 155,140,009.95 and 42,885,847.70

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Solution

The fourth proportional to 103,463,998.10, 155,140,009.95 and 42,885,847.70 is: 64,305,564.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,463,998.10 : 155,140,009.95 = 42,885,847.70 : x
  2. Step 2: Convert to fraction form
    103,463,998.10/155,140,009.95 = 42,885,847.70/x
  3. Step 3: Cross multiply
    103,463,998.10x = 155,140,009.95 × 42,885,847.70
  4. Step 4: Simplify right side
    103,463,998.10x = 6,653,310,838,892,185
  5. Step 5: Solve for x
    x = 6,653,310,838,892,185/103,463,998.10
  6. Step 6: Final answer
    x = 64,305,564.84

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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.