Home / 428,142,711.06-590,853,182.76-239,974,482.78

Finding the Fourth Proportional to 428,142,711.06, 590,853,182.76 and 239,974,482.78

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Solution

The fourth proportional to 428,142,711.06, 590,853,182.76 and 239,974,482.78 is: 331,173,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,142,711.06 : 590,853,182.76 = 239,974,482.78 : x
  2. Step 2: Convert to fraction form
    428,142,711.06/590,853,182.76 = 239,974,482.78/x
  3. Step 3: Cross multiply
    428,142,711.06x = 590,853,182.76 × 239,974,482.78
  4. Step 4: Simplify right side
    428,142,711.06x = 141,789,686,931,747,808
  5. Step 5: Solve for x
    x = 141,789,686,931,747,808/428,142,711.06
  6. Step 6: Final answer
    x = 331,173,889.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.