Home / 291,079,985.60-436,619,978.40-145,536,010.40

Finding the Fourth Proportional to 291,079,985.60, 436,619,978.40 and 145,536,010.40

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Solution

The fourth proportional to 291,079,985.60, 436,619,978.40 and 145,536,010.40 is: 218,304,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,079,985.60 : 436,619,978.40 = 145,536,010.40 : x
  2. Step 2: Convert to fraction form
    291,079,985.60/436,619,978.40 = 145,536,010.40/x
  3. Step 3: Cross multiply
    291,079,985.60x = 436,619,978.40 × 145,536,010.40
  4. Step 4: Simplify right side
    291,079,985.60x = 63,543,929,717,270,176
  5. Step 5: Solve for x
    x = 63,543,929,717,270,176/291,079,985.60
  6. Step 6: Final answer
    x = 218,304,015.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.