Home / 54,455,431.60-81,683,147.40-42,126,000.40

Finding the Fourth Proportional to 54,455,431.60, 81,683,147.40 and 42,126,000.40

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Solution

The fourth proportional to 54,455,431.60, 81,683,147.40 and 42,126,000.40 is: 63,189,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,455,431.60 : 81,683,147.40 = 42,126,000.40 : x
  2. Step 2: Convert to fraction form
    54,455,431.60/81,683,147.40 = 42,126,000.40/x
  3. Step 3: Cross multiply
    54,455,431.60x = 81,683,147.40 × 42,126,000.40
  4. Step 4: Simplify right side
    54,455,431.60x = 3,440,984,300,045,659
  5. Step 5: Solve for x
    x = 3,440,984,300,045,659/54,455,431.60
  6. Step 6: Final answer
    x = 63,189,000.60

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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.