Home / 279,936,345.60-419,904,518.40-75,457,094.40

Finding the Fourth Proportional to 279,936,345.60, 419,904,518.40 and 75,457,094.40

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Solution

The fourth proportional to 279,936,345.60, 419,904,518.40 and 75,457,094.40 is: 113,185,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,345.60 : 419,904,518.40 = 75,457,094.40 : x
  2. Step 2: Convert to fraction form
    279,936,345.60/419,904,518.40 = 75,457,094.40/x
  3. Step 3: Cross multiply
    279,936,345.60x = 419,904,518.40 × 75,457,094.40
  4. Step 4: Simplify right side
    279,936,345.60x = 31,684,774,883,895,336
  5. Step 5: Solve for x
    x = 31,684,774,883,895,336/279,936,345.60
  6. Step 6: Final answer
    x = 113,185,641.60

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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.