Home / 20,968,051.60-31,452,077.40-12,444,000.40

Finding the Fourth Proportional to 20,968,051.60, 31,452,077.40 and 12,444,000.40

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Solution

The fourth proportional to 20,968,051.60, 31,452,077.40 and 12,444,000.40 is: 18,666,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,968,051.60 : 31,452,077.40 = 12,444,000.40 : x
  2. Step 2: Convert to fraction form
    20,968,051.60/31,452,077.40 = 12,444,000.40/x
  3. Step 3: Cross multiply
    20,968,051.60x = 31,452,077.40 × 12,444,000.40
  4. Step 4: Simplify right side
    20,968,051.60x = 391,389,663,746,430.94
  5. Step 5: Solve for x
    x = 391,389,663,746,430.94/20,968,051.60
  6. Step 6: Final answer
    x = 18,666,000.60

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1.5x scale

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.