Home / 15,187,802.78-20,959,223.40-8,218,480.39

Finding the Fourth Proportional to 15,187,802.78, 20,959,223.40 and 8,218,480.39

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Solution

The fourth proportional to 15,187,802.78, 20,959,223.40 and 8,218,480.39 is: 11,341,533.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187,802.78 : 20,959,223.40 = 8,218,480.39 : x
  2. Step 2: Convert to fraction form
    15,187,802.78/20,959,223.40 = 8,218,480.39/x
  3. Step 3: Cross multiply
    15,187,802.78x = 20,959,223.40 × 8,218,480.39
  4. Step 4: Simplify right side
    15,187,802.78x = 172,252,966,502,529.09
  5. Step 5: Solve for x
    x = 172,252,966,502,529.09/15,187,802.78
  6. Step 6: Final answer
    x = 11,341,533.00

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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.