Home / 386,194,421.16-579,291,624.72-113,565,188.16

Finding the Fourth Proportional to 386,194,421.16, 579,291,624.72 and 113,565,188.16

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Solution

The fourth proportional to 386,194,421.16, 579,291,624.72 and 113,565,188.16 is: 170,347,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,194,421.16 : 579,291,624.72 = 113,565,188.16 : x
  2. Step 2: Convert to fraction form
    386,194,421.16/579,291,624.72 = 113,565,188.16/x
  3. Step 3: Cross multiply
    386,194,421.16x = 579,291,624.72 × 113,565,188.16
  4. Step 4: Simplify right side
    386,194,421.16x = 65,787,362,360,838,912
  5. Step 5: Solve for x
    x = 65,787,362,360,838,912/386,194,421.16
  6. Step 6: Final answer
    x = 170,347,780.18

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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.