Home / 66,430,220.40-99,645,330.60-54,313,365.60

Finding the Fourth Proportional to 66,430,220.40, 99,645,330.60 and 54,313,365.60

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Solution

The fourth proportional to 66,430,220.40, 99,645,330.60 and 54,313,365.60 is: 81,470,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,220.40 : 99,645,330.60 = 54,313,365.60 : x
  2. Step 2: Convert to fraction form
    66,430,220.40/99,645,330.60 = 54,313,365.60/x
  3. Step 3: Cross multiply
    66,430,220.40x = 99,645,330.60 × 54,313,365.60
  4. Step 4: Simplify right side
    66,430,220.40x = 5,412,073,271,210,667
  5. Step 5: Solve for x
    x = 5,412,073,271,210,667/66,430,220.40
  6. Step 6: Final answer
    x = 81,470,048.40

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1.5x scale

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.