Home / 28,238,470.20-42,352,830.18-7,489,052.28

Finding the Fourth Proportional to 28,238,470.20, 42,352,830.18 and 7,489,052.28

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Solution

The fourth proportional to 28,238,470.20, 42,352,830.18 and 7,489,052.28 is: 11,232,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238,470.20 : 42,352,830.18 = 7,489,052.28 : x
  2. Step 2: Convert to fraction form
    28,238,470.20/42,352,830.18 = 7,489,052.28/x
  3. Step 3: Cross multiply
    28,238,470.20x = 42,352,830.18 × 7,489,052.28
  4. Step 4: Simplify right side
    28,238,470.20x = 317,182,559,423,981.81
  5. Step 5: Solve for x
    x = 317,182,559,423,981.81/28,238,470.20
  6. Step 6: Final answer
    x = 11,232,285.50

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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.