Home / 289,417,286.40-433,993,219.20-127,776,019.20

Finding the Fourth Proportional to 289,417,286.40, 433,993,219.20 and 127,776,019.20

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Solution

The fourth proportional to 289,417,286.40, 433,993,219.20 and 127,776,019.20 is: 191,605,437.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,417,286.40 : 433,993,219.20 = 127,776,019.20 : x
  2. Step 2: Convert to fraction form
    289,417,286.40/433,993,219.20 = 127,776,019.20/x
  3. Step 3: Cross multiply
    289,417,286.40x = 433,993,219.20 × 127,776,019.20
  4. Step 4: Simplify right side
    289,417,286.40x = 55,453,925,909,169,008
  5. Step 5: Solve for x
    x = 55,453,925,909,169,008/289,417,286.40
  6. Step 6: Final answer
    x = 191,605,437.94

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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.