Home / 289,417,278.40-433,993,207.20-127,776,011.20

Finding the Fourth Proportional to 289,417,278.40, 433,993,207.20 and 127,776,011.20

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Solution

The fourth proportional to 289,417,278.40, 433,993,207.20 and 127,776,011.20 is: 191,605,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,417,278.40 : 433,993,207.20 = 127,776,011.20 : x
  2. Step 2: Convert to fraction form
    289,417,278.40/433,993,207.20 = 127,776,011.20/x
  3. Step 3: Cross multiply
    289,417,278.40x = 433,993,207.20 × 127,776,011.20
  4. Step 4: Simplify right side
    289,417,278.40x = 55,453,920,903,911,120
  5. Step 5: Solve for x
    x = 55,453,920,903,911,120/289,417,278.40
  6. Step 6: Final answer
    x = 191,605,425.95

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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.