Home / 66,402,002.40-99,603,003.60-54,285,147.60

Finding the Fourth Proportional to 66,402,002.40, 99,603,003.60 and 54,285,147.60

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Solution

The fourth proportional to 66,402,002.40, 99,603,003.60 and 54,285,147.60 is: 81,427,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,402,002.40 : 99,603,003.60 = 54,285,147.60 : x
  2. Step 2: Convert to fraction form
    66,402,002.40/99,603,003.60 = 54,285,147.60/x
  3. Step 3: Cross multiply
    66,402,002.40x = 99,603,003.60 × 54,285,147.60
  4. Step 4: Simplify right side
    66,402,002.40x = 5,406,963,751,829,331
  5. Step 5: Solve for x
    x = 5,406,963,751,829,331/66,402,002.40
  6. Step 6: Final answer
    x = 81,427,721.40

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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.