Home / 147,109,985.28-203,011,777.28-85,266,195.20

Finding the Fourth Proportional to 147,109,985.28, 203,011,777.28 and 85,266,195.20

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Solution

The fourth proportional to 147,109,985.28, 203,011,777.28 and 85,266,195.20 is: 117,667,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,109,985.28 : 203,011,777.28 = 85,266,195.20 : x
  2. Step 2: Convert to fraction form
    147,109,985.28/203,011,777.28 = 85,266,195.20/x
  3. Step 3: Cross multiply
    147,109,985.28x = 203,011,777.28 × 85,266,195.20
  4. Step 4: Simplify right side
    147,109,985.28x = 17,310,041,829,455,406
  5. Step 5: Solve for x
    x = 17,310,041,829,455,406/147,109,985.28
  6. Step 6: Final answer
    x = 117,667,347.98

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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.