Home / 147,186,237.32-203,118,369.52-81,109,100.14

Finding the Fourth Proportional to 147,186,237.32, 203,118,369.52 and 81,109,100.14

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Solution

The fourth proportional to 147,186,237.32, 203,118,369.52 and 81,109,100.14 is: 111,931,308.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,186,237.32 : 203,118,369.52 = 81,109,100.14 : x
  2. Step 2: Convert to fraction form
    147,186,237.32/203,118,369.52 = 81,109,100.14/x
  3. Step 3: Cross multiply
    147,186,237.32x = 203,118,369.52 × 81,109,100.14
  4. Step 4: Simplify right side
    147,186,237.32x = 16,474,748,173,671,204
  5. Step 5: Solve for x
    x = 16,474,748,173,671,204/147,186,237.32
  6. Step 6: Final answer
    x = 111,931,308.75

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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.