Home / 39,959,103.61-55,143,360.24-21,624,389.11

Finding the Fourth Proportional to 39,959,103.61, 55,143,360.24 and 21,624,389.11

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Solution

The fourth proportional to 39,959,103.61, 55,143,360.24 and 21,624,389.11 is: 29,841,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,959,103.61 : 55,143,360.24 = 21,624,389.11 : x
  2. Step 2: Convert to fraction form
    39,959,103.61/55,143,360.24 = 21,624,389.11/x
  3. Step 3: Cross multiply
    39,959,103.61x = 55,143,360.24 × 21,624,389.11
  4. Step 4: Simplify right side
    39,959,103.61x = 1,192,441,478,386,946.25
  5. Step 5: Solve for x
    x = 1,192,441,478,386,946.25/39,959,103.61
  6. Step 6: Final answer
    x = 29,841,547.25

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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.