Home / 20,779,237.60-31,168,856.40-9,441,829.60

Finding the Fourth Proportional to 20,779,237.60, 31,168,856.40 and 9,441,829.60

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Solution

The fourth proportional to 20,779,237.60, 31,168,856.40 and 9,441,829.60 is: 14,162,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,237.60 : 31,168,856.40 = 9,441,829.60 : x
  2. Step 2: Convert to fraction form
    20,779,237.60/31,168,856.40 = 9,441,829.60/x
  3. Step 3: Cross multiply
    20,779,237.60x = 31,168,856.40 × 9,441,829.60
  4. Step 4: Simplify right side
    20,779,237.60x = 294,291,030,955,669.44
  5. Step 5: Solve for x
    x = 294,291,030,955,669.44/20,779,237.60
  6. Step 6: Final answer
    x = 14,162,744.40

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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.