Home / 38,385,931.34-52,972,581.21-20,982,345.86

Finding the Fourth Proportional to 38,385,931.34, 52,972,581.21 and 20,982,345.86

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Solution

The fourth proportional to 38,385,931.34, 52,972,581.21 and 20,982,345.86 is: 28,955,635.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,385,931.34 : 52,972,581.21 = 20,982,345.86 : x
  2. Step 2: Convert to fraction form
    38,385,931.34/52,972,581.21 = 20,982,345.86/x
  3. Step 3: Cross multiply
    38,385,931.34x = 52,972,581.21 × 20,982,345.86
  4. Step 4: Simplify right side
    38,385,931.34x = 1,111,489,020,045,157.25
  5. Step 5: Solve for x
    x = 1,111,489,020,045,157.25/38,385,931.34
  6. Step 6: Final answer
    x = 28,955,635.08

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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.