Home / 28,449,210.13-42,630,709.16-18,830,128.03

Finding the Fourth Proportional to 28,449,210.13, 42,630,709.16 and 18,830,128.03

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Solution

The fourth proportional to 28,449,210.13, 42,630,709.16 and 18,830,128.03 is: 28,216,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449,210.13 : 42,630,709.16 = 18,830,128.03 : x
  2. Step 2: Convert to fraction form
    28,449,210.13/42,630,709.16 = 18,830,128.03/x
  3. Step 3: Cross multiply
    28,449,210.13x = 42,630,709.16 × 18,830,128.03
  4. Step 4: Simplify right side
    28,449,210.13x = 802,741,711,398,343.25
  5. Step 5: Solve for x
    x = 802,741,711,398,343.25/28,449,210.13
  6. Step 6: Final answer
    x = 28,216,660.77

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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.