Home / 20,779,239.60-31,168,859.40-9,441,831.60

Finding the Fourth Proportional to 20,779,239.60, 31,168,859.40 and 9,441,831.60

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Solution

The fourth proportional to 20,779,239.60, 31,168,859.40 and 9,441,831.60 is: 14,162,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,239.60 : 31,168,859.40 = 9,441,831.60 : x
  2. Step 2: Convert to fraction form
    20,779,239.60/31,168,859.40 = 9,441,831.60/x
  3. Step 3: Cross multiply
    20,779,239.60x = 31,168,859.40 × 9,441,831.60
  4. Step 4: Simplify right side
    20,779,239.60x = 294,291,121,618,877
  5. Step 5: Solve for x
    x = 294,291,121,618,877/20,779,239.60
  6. Step 6: Final answer
    x = 14,162,747.40

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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.