Home / 28,740,807.20-43,111,210.80-12,784,455.20

Finding the Fourth Proportional to 28,740,807.20, 43,111,210.80 and 12,784,455.20

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Solution

The fourth proportional to 28,740,807.20, 43,111,210.80 and 12,784,455.20 is: 19,176,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740,807.20 : 43,111,210.80 = 12,784,455.20 : x
  2. Step 2: Convert to fraction form
    28,740,807.20/43,111,210.80 = 12,784,455.20/x
  3. Step 3: Cross multiply
    28,740,807.20x = 43,111,210.80 × 12,784,455.20
  4. Step 4: Simplify right side
    28,740,807.20x = 551,153,343,090,356.06
  5. Step 5: Solve for x
    x = 551,153,343,090,356.06/28,740,807.20
  6. Step 6: Final answer
    x = 19,176,682.80

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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.