Home / 38,833,400.40-58,266,430.20-20,861,509.20

Finding the Fourth Proportional to 38,833,400.40, 58,266,430.20 and 20,861,509.20

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Solution

The fourth proportional to 38,833,400.40, 58,266,430.20 and 20,861,509.20 is: 31,301,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,833,400.40 : 58,266,430.20 = 20,861,509.20 : x
  2. Step 2: Convert to fraction form
    38,833,400.40/58,266,430.20 = 20,861,509.20/x
  3. Step 3: Cross multiply
    38,833,400.40x = 58,266,430.20 × 20,861,509.20
  4. Step 4: Simplify right side
    38,833,400.40x = 1,215,525,669,668,457.75
  5. Step 5: Solve for x
    x = 1,215,525,669,668,457.75/38,833,400.40
  6. Step 6: Final answer
    x = 31,301,036.15

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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.