Home / 21,475,616.32-29,637,626.16-12,308,851.36

Finding the Fourth Proportional to 21,475,616.32, 29,637,626.16 and 12,308,851.36

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Solution

The fourth proportional to 21,475,616.32, 29,637,626.16 and 12,308,851.36 is: 16,986,946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475,616.32 : 29,637,626.16 = 12,308,851.36 : x
  2. Step 2: Convert to fraction form
    21,475,616.32/29,637,626.16 = 12,308,851.36/x
  3. Step 3: Cross multiply
    21,475,616.32x = 29,637,626.16 × 12,308,851.36
  4. Step 4: Simplify right side
    21,475,616.32x = 364,805,135,066,687.56
  5. Step 5: Solve for x
    x = 364,805,135,066,687.56/21,475,616.32
  6. Step 6: Final answer
    x = 16,986,946.01

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1.5x scale

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.