Home / 39,931,878.66-55,105,996.65-21,597,164.16

Finding the Fourth Proportional to 39,931,878.66, 55,105,996.65 and 21,597,164.16

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Solution

The fourth proportional to 39,931,878.66, 55,105,996.65 and 21,597,164.16 is: 29,804,088.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,931,878.66 : 55,105,996.65 = 21,597,164.16 : x
  2. Step 2: Convert to fraction form
    39,931,878.66/55,105,996.65 = 21,597,164.16/x
  3. Step 3: Cross multiply
    39,931,878.66x = 55,105,996.65 × 21,597,164.16
  4. Step 4: Simplify right side
    39,931,878.66x = 1,190,133,255,562,823.25
  5. Step 5: Solve for x
    x = 1,190,133,255,562,823.25/39,931,878.66
  6. Step 6: Final answer
    x = 29,804,088.75

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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.