Home / 15,128,093.28-20,877,756-8,602,330.08

Finding the Fourth Proportional to 15,128,093.28, 20,877,756 and 8,602,330.08

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Solution

The fourth proportional to 15,128,093.28, 20,877,756 and 8,602,330.08 is: 11,871,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,093.28 : 20,877,756 = 8,602,330.08 : x
  2. Step 2: Convert to fraction form
    15,128,093.28/20,877,756 = 8,602,330.08/x
  3. Step 3: Cross multiply
    15,128,093.28x = 20,877,756 × 8,602,330.08
  4. Step 4: Simplify right side
    15,128,093.28x = 179,597,348,441,700.47
  5. Step 5: Solve for x
    x = 179,597,348,441,700.47/15,128,093.28
  6. Step 6: Final answer
    x = 11,871,776.91

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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.