Home / 28,348,520.92-42,528,982.94-9,181,215.52

Finding the Fourth Proportional to 28,348,520.92, 42,528,982.94 and 9,181,215.52

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Solution

The fourth proportional to 28,348,520.92, 42,528,982.94 and 9,181,215.52 is: 13,773,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,348,520.92 : 42,528,982.94 = 9,181,215.52 : x
  2. Step 2: Convert to fraction form
    28,348,520.92/42,528,982.94 = 9,181,215.52/x
  3. Step 3: Cross multiply
    28,348,520.92x = 42,528,982.94 × 9,181,215.52
  4. Step 4: Simplify right side
    28,348,520.92x = 390,467,758,218,543.19
  5. Step 5: Solve for x
    x = 390,467,758,218,543.19/28,348,520.92
  6. Step 6: Final answer
    x = 13,773,831.77

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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.