Home / 289,448,501.40-434,040,041.70-127,807,234.20

Finding the Fourth Proportional to 289,448,501.40, 434,040,041.70 and 127,807,234.20

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Solution

The fourth proportional to 289,448,501.40, 434,040,041.70 and 127,807,234.20 is: 191,652,252.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,448,501.40 : 434,040,041.70 = 127,807,234.20 : x
  2. Step 2: Convert to fraction form
    289,448,501.40/434,040,041.70 = 127,807,234.20/x
  3. Step 3: Cross multiply
    289,448,501.40x = 434,040,041.70 × 127,807,234.20
  4. Step 4: Simplify right side
    289,448,501.40x = 55,473,457,261,729,664
  5. Step 5: Solve for x
    x = 55,473,457,261,729,664/289,448,501.40
  6. Step 6: Final answer
    x = 191,652,252.45

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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.