Home / 28,006,989.60-42,010,484.40-10,961,997.60

Finding the Fourth Proportional to 28,006,989.60, 42,010,484.40 and 10,961,997.60

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Solution

The fourth proportional to 28,006,989.60, 42,010,484.40 and 10,961,997.60 is: 16,442,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,989.60 : 42,010,484.40 = 10,961,997.60 : x
  2. Step 2: Convert to fraction form
    28,006,989.60/42,010,484.40 = 10,961,997.60/x
  3. Step 3: Cross multiply
    28,006,989.60x = 42,010,484.40 × 10,961,997.60
  4. Step 4: Simplify right side
    28,006,989.60x = 460,518,829,167,637.44
  5. Step 5: Solve for x
    x = 460,518,829,167,637.44/28,006,989.60
  6. Step 6: Final answer
    x = 16,442,996.40

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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.