Home / 147,186,301.40-203,118,458.18-81,109,164.35

Finding the Fourth Proportional to 147,186,301.40, 203,118,458.18 and 81,109,164.35

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Solution

The fourth proportional to 147,186,301.40, 203,118,458.18 and 81,109,164.35 is: 111,931,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,186,301.40 : 203,118,458.18 = 81,109,164.35 : x
  2. Step 2: Convert to fraction form
    147,186,301.40/203,118,458.18 = 81,109,164.35/x
  3. Step 3: Cross multiply
    147,186,301.40x = 203,118,458.18 × 81,109,164.35
  4. Step 4: Simplify right side
    147,186,301.40x = 16,474,768,405,619,084
  5. Step 5: Solve for x
    x = 16,474,768,405,619,084/147,186,301.40
  6. Step 6: Final answer
    x = 111,931,397.48

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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.