Home / 66,430,233.40-99,645,350.10-54,313,378.60

Finding the Fourth Proportional to 66,430,233.40, 99,645,350.10 and 54,313,378.60

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Solution

The fourth proportional to 66,430,233.40, 99,645,350.10 and 54,313,378.60 is: 81,470,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,233.40 : 99,645,350.10 = 54,313,378.60 : x
  2. Step 2: Convert to fraction form
    66,430,233.40/99,645,350.10 = 54,313,378.60/x
  3. Step 3: Cross multiply
    66,430,233.40x = 99,645,350.10 × 54,313,378.60
  4. Step 4: Simplify right side
    66,430,233.40x = 5,412,075,625,710,848
  5. Step 5: Solve for x
    x = 5,412,075,625,710,848/66,430,233.40
  6. Step 6: Final answer
    x = 81,470,067.90

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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.