Home / 66,433,333.80-99,650,000.70-39,111,580.20

Finding the Fourth Proportional to 66,433,333.80, 99,650,000.70 and 39,111,580.20

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Solution

The fourth proportional to 66,433,333.80, 99,650,000.70 and 39,111,580.20 is: 58,667,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,433,333.80 : 99,650,000.70 = 39,111,580.20 : x
  2. Step 2: Convert to fraction form
    66,433,333.80/99,650,000.70 = 39,111,580.20/x
  3. Step 3: Cross multiply
    66,433,333.80x = 99,650,000.70 × 39,111,580.20
  4. Step 4: Simplify right side
    66,433,333.80x = 3,897,468,994,308,106.50
  5. Step 5: Solve for x
    x = 3,897,468,994,308,106.50/66,433,333.80
  6. Step 6: Final answer
    x = 58,667,370.30

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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.