Home / 42,581,239.92-64,005,185.88-28,101,210.12

Finding the Fourth Proportional to 42,581,239.92, 64,005,185.88 and 28,101,210.12

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Solution

The fourth proportional to 42,581,239.92, 64,005,185.88 and 28,101,210.12 is: 42,239,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,581,239.92 : 64,005,185.88 = 28,101,210.12 : x
  2. Step 2: Convert to fraction form
    42,581,239.92/64,005,185.88 = 28,101,210.12/x
  3. Step 3: Cross multiply
    42,581,239.92x = 64,005,185.88 × 28,101,210.12
  4. Step 4: Simplify right side
    42,581,239.92x = 1,798,623,177,183,537.25
  5. Step 5: Solve for x
    x = 1,798,623,177,183,537.25/42,581,239.92
  6. Step 6: Final answer
    x = 42,239,802.80

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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.