Home / 15,138,018.08-20,888,001.72-8,942,208.16

Finding the Fourth Proportional to 15,138,018.08, 20,888,001.72 and 8,942,208.16

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Solution

The fourth proportional to 15,138,018.08, 20,888,001.72 and 8,942,208.16 is: 12,338,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138,018.08 : 20,888,001.72 = 8,942,208.16 : x
  2. Step 2: Convert to fraction form
    15,138,018.08/20,888,001.72 = 8,942,208.16/x
  3. Step 3: Cross multiply
    15,138,018.08x = 20,888,001.72 × 8,942,208.16
  4. Step 4: Simplify right side
    15,138,018.08x = 186,784,859,426,678.03
  5. Step 5: Solve for x
    x = 186,784,859,426,678.03/15,138,018.08
  6. Step 6: Final answer
    x = 12,338,792.20

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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.