Home / 280,020,003.40-419,904,033.90-107,439,459.40

Finding the Fourth Proportional to 280,020,003.40, 419,904,033.90 and 107,439,459.40

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Solution

The fourth proportional to 280,020,003.40, 419,904,033.90 and 107,439,459.40 is: 161,110,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,020,003.40 : 419,904,033.90 = 107,439,459.40 : x
  2. Step 2: Convert to fraction form
    280,020,003.40/419,904,033.90 = 107,439,459.40/x
  3. Step 3: Cross multiply
    280,020,003.40x = 419,904,033.90 × 107,439,459.40
  4. Step 4: Simplify right side
    280,020,003.40x = 45,114,262,402,095,272
  5. Step 5: Solve for x
    x = 45,114,262,402,095,272/280,020,003.40
  6. Step 6: Final answer
    x = 161,110,855.85

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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.