Home / 21,354,047.60-31,956,421.80-19,562,457.20

Finding the Fourth Proportional to 21,354,047.60, 31,956,421.80 and 19,562,457.20

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Solution

The fourth proportional to 21,354,047.60, 31,956,421.80 and 19,562,457.20 is: 29,275,299.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354,047.60 : 31,956,421.80 = 19,562,457.20 : x
  2. Step 2: Convert to fraction form
    21,354,047.60/31,956,421.80 = 19,562,457.20/x
  3. Step 3: Cross multiply
    21,354,047.60x = 31,956,421.80 × 19,562,457.20
  4. Step 4: Simplify right side
    21,354,047.60x = 625,146,133,727,647
  5. Step 5: Solve for x
    x = 625,146,133,727,647/21,354,047.60
  6. Step 6: Final answer
    x = 29,275,299.25

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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.