Home / 74,145,628.32-111,218,220-18,813,356.16

Finding the Fourth Proportional to 74,145,628.32, 111,218,220 and 18,813,356.16

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Solution

The fourth proportional to 74,145,628.32, 111,218,220 and 18,813,356.16 is: 28,219,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,145,628.32 : 111,218,220 = 18,813,356.16 : x
  2. Step 2: Convert to fraction form
    74,145,628.32/111,218,220 = 18,813,356.16/x
  3. Step 3: Cross multiply
    74,145,628.32x = 111,218,220 × 18,813,356.16
  4. Step 4: Simplify right side
    74,145,628.32x = 2,092,387,984,341,235.25
  5. Step 5: Solve for x
    x = 2,092,387,984,341,235.25/74,145,628.32
  6. Step 6: Final answer
    x = 28,219,977.79

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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.