Home / 280,020,748.40-419,905,151.40-107,440,204.40

Finding the Fourth Proportional to 280,020,748.40, 419,905,151.40 and 107,440,204.40

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Solution

The fourth proportional to 280,020,748.40, 419,905,151.40 and 107,440,204.40 is: 161,111,973.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,020,748.40 : 419,905,151.40 = 107,440,204.40 : x
  2. Step 2: Convert to fraction form
    280,020,748.40/419,905,151.40 = 107,440,204.40/x
  3. Step 3: Cross multiply
    280,020,748.40x = 419,905,151.40 × 107,440,204.40
  4. Step 4: Simplify right side
    280,020,748.40x = 45,114,695,295,028,944
  5. Step 5: Solve for x
    x = 45,114,695,295,028,944/280,020,748.40
  6. Step 6: Final answer
    x = 161,111,973.14

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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.