Home / 42,901,828.92-64,266,581.16-19,840,438.80

Finding the Fourth Proportional to 42,901,828.92, 64,266,581.16 and 19,840,438.80

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Solution

The fourth proportional to 42,901,828.92, 64,266,581.16 and 19,840,438.80 is: 29,720,811.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,901,828.92 : 64,266,581.16 = 19,840,438.80 : x
  2. Step 2: Convert to fraction form
    42,901,828.92/64,266,581.16 = 19,840,438.80/x
  3. Step 3: Cross multiply
    42,901,828.92x = 64,266,581.16 × 19,840,438.80
  4. Step 4: Simplify right side
    42,901,828.92x = 1,275,077,170,390,213
  5. Step 5: Solve for x
    x = 1,275,077,170,390,213/42,901,828.92
  6. Step 6: Final answer
    x = 29,720,811.50

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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.