Home / 154,768,305.42-231,976,457.28-80,878,158.18

Finding the Fourth Proportional to 154,768,305.42, 231,976,457.28 and 80,878,158.18

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Solution

The fourth proportional to 154,768,305.42, 231,976,457.28 and 80,878,158.18 is: 121,225,263.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,768,305.42 : 231,976,457.28 = 80,878,158.18 : x
  2. Step 2: Convert to fraction form
    154,768,305.42/231,976,457.28 = 80,878,158.18/x
  3. Step 3: Cross multiply
    154,768,305.42x = 231,976,457.28 × 80,878,158.18
  4. Step 4: Simplify right side
    154,768,305.42x = 18,761,828,605,927,856
  5. Step 5: Solve for x
    x = 18,761,828,605,927,856/154,768,305.42
  6. Step 6: Final answer
    x = 121,225,263.50

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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.