Home / 147,186,326.36-203,118,492.89-81,109,189.31

Finding the Fourth Proportional to 147,186,326.36, 203,118,492.89 and 81,109,189.31

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Solution

The fourth proportional to 147,186,326.36, 203,118,492.89 and 81,109,189.31 is: 111,931,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,186,326.36 : 203,118,492.89 = 81,109,189.31 : x
  2. Step 2: Convert to fraction form
    147,186,326.36/203,118,492.89 = 81,109,189.31/x
  3. Step 3: Cross multiply
    147,186,326.36x = 203,118,492.89 × 81,109,189.31
  4. Step 4: Simplify right side
    147,186,326.36x = 16,474,776,291,364,082
  5. Step 5: Solve for x
    x = 16,474,776,291,364,082/147,186,326.36
  6. Step 6: Final answer
    x = 111,931,432.07

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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.