Home / 163,327,811.20-245,035,019.40-71,172,005.20

Finding the Fourth Proportional to 163,327,811.20, 245,035,019.40 and 71,172,005.20

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Solution

The fourth proportional to 163,327,811.20, 245,035,019.40 and 71,172,005.20 is: 106,776,877.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,327,811.20 : 245,035,019.40 = 71,172,005.20 : x
  2. Step 2: Convert to fraction form
    163,327,811.20/245,035,019.40 = 71,172,005.20/x
  3. Step 3: Cross multiply
    163,327,811.20x = 245,035,019.40 × 71,172,005.20
  4. Step 4: Simplify right side
    163,327,811.20x = 17,439,633,674,918,902
  5. Step 5: Solve for x
    x = 17,439,633,674,918,902/163,327,811.20
  6. Step 6: Final answer
    x = 106,776,877.41

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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.