Home / 255,978,030.89-383,984,072.52-89,961,457.16

Finding the Fourth Proportional to 255,978,030.89, 383,984,072.52 and 89,961,457.16

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Solution

The fourth proportional to 255,978,030.89, 383,984,072.52 and 89,961,457.16 is: 134,948,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,978,030.89 : 383,984,072.52 = 89,961,457.16 : x
  2. Step 2: Convert to fraction form
    255,978,030.89/383,984,072.52 = 89,961,457.16/x
  3. Step 3: Cross multiply
    255,978,030.89x = 383,984,072.52 × 89,961,457.16
  4. Step 4: Simplify right side
    255,978,030.89x = 34,543,766,688,593,008
  5. Step 5: Solve for x
    x = 34,543,766,688,593,008/255,978,030.89
  6. Step 6: Final answer
    x = 134,948,169.45

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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.