Home / 15,128,088.48-20,877,748.56-8,602,325.28

Finding the Fourth Proportional to 15,128,088.48, 20,877,748.56 and 8,602,325.28

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Solution

The fourth proportional to 15,128,088.48, 20,877,748.56 and 8,602,325.28 is: 11,871,769.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,088.48 : 20,877,748.56 = 8,602,325.28 : x
  2. Step 2: Convert to fraction form
    15,128,088.48/20,877,748.56 = 8,602,325.28/x
  3. Step 3: Cross multiply
    15,128,088.48x = 20,877,748.56 × 8,602,325.28
  4. Step 4: Simplify right side
    15,128,088.48x = 179,597,184,227,171.56
  5. Step 5: Solve for x
    x = 179,597,184,227,171.56/15,128,088.48
  6. Step 6: Final answer
    x = 11,871,769.82

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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.